Abstract

We report the spatial and temporal dynamics of the photo-induced phase in the iron (II) spin crossover complex Fe(ptz)6(BF4)2 studied by image measurement under steady light irradiation and transient absorption measurement. The dynamic factors are derived from the spatial and temporal fluctuation of the image in the steady state under light irradiation between 65 and 100 K. The dynamic factors clearly indicate that the fluctuation has a resonant frequency that strongly depends on the temperature, and is proportional to the relaxation rate of the photo-induced phase. This oscillation of the speckle pattern under steady light irradiation is ascribed to the nonlinear interaction between the spin state and the lattice volume at the surface.

© 2013 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. H. Haken, Laser Light Dynamics (North-Holland Pub. Company, 1985).
  2. J. R. Ackerhalt, P. W. Milonni, and M.-L. Shih, “Chaos in quantum optics,” Phys. Rep.128(4-5), 205–300 (1985).
    [CrossRef]
  3. L. M. Pecora and T. L. Carroll, “Synchronization in chaotic systems,” Phys. Rev. Lett.64(8), 821–824 (1990).
    [CrossRef] [PubMed]
  4. A. Uchida, F. Rogister, J. García-Ojalvo, and R. Roy, “Synchronization and communication with chaotic laser systems,” in Progress in Optics, E. Wolf, ed. (Elsevier, 2005), pp. 203–341.
  5. S. Koshihara, Y. Tokura, T. Mitani, G. Saito, and T. Koda, “Photoinduced valence instability in the organic molecular compound tetrathiafulvalene-p-chloranil (TTF-CA),” Phys. Rev. B Condens. Matter42(10), 6853–6856 (1990).
    [CrossRef] [PubMed]
  6. S. Koshihara, Y. Tokura, K. Takeda, and T. Koda, “Reversible photoinduced phase transitions in single crystals of polydiacetylenes,” Phys. Rev. Lett.68(8), 1148–1151 (1992).
    [CrossRef] [PubMed]
  7. K. Nasu, Photoinduced Phase Transitions (World Scientific Publishing, 2004).
  8. S. Koshihara, Y. Takahashi, H. Sakai, Y. Tokura, and T. Luty, “Photoinduced cooperative charge transfer in low-dimensional organic crystals,” J. Phys. Chem. B103(14), 2592–2600 (1999).
    [CrossRef]
  9. Y. Ogawa, S. Koshihara, K. Koshino, T. Ogawa, C. Urano, and H. Takagi, “Dynamical aspects of the photoinduced phase transition in spin-crossover complexes,” Phys. Rev. Lett.84(14), 3181–3184 (2000).
    [CrossRef] [PubMed]
  10. S. Bedoui, M. Lopes, W. Nicolazzi, S. Bonnet, S. Zheng, G. Molnár, and A. Bousseksou, “Triggering a phase transition by a spatially localized laser pulse: role of strain,” Phys. Rev. Lett.109(13), 135702 (2012).
    [CrossRef] [PubMed]
  11. P. Gütlich and H. A. Goodwin, “Topics in Current Chemistry 233–235,” in Spin Crossover in Transition Metal Compounds I –III (Springer, 2004).
  12. S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura, “Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy,” Phys. Rev. Lett.88(5), 057402 (2002).
    [CrossRef] [PubMed]
  13. E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
    [CrossRef] [PubMed]
  14. H. Uemura and H. Okamoto, “Direct detection of the ultrafast response of charges and molecules in the photoinduced neutral-to-ionic transition of the organic tetrathiafulvalene-p-chloranil solid,” Phys. Rev. Lett.105(25), 258302 (2010).
    [CrossRef] [PubMed]
  15. A. Cavalleri, C. Tóth, C. W. Siders, J. A. Squier, F. Ráksi, P. Forget, and J. C. Kieffer, “Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition,” Phys. Rev. Lett.87(23), 237401 (2001).
    [CrossRef] [PubMed]
  16. M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
    [CrossRef] [PubMed]
  17. A. Bousseksou, G. Molnár, J. Real, and K. Tanaka, “Spin crossover and photomagnetism in dinuclear iron(II) compounds,” Coord. Chem. Rev.251(13-14), 1822–1833 (2007).
    [CrossRef]
  18. A. Bousseksou, G. Molnár, L. Salmon, and W. Nicolazzi, “Molecular spin crossover phenomenon: recent achievements and prospects,” Chem. Soc. Rev.40(6), 3313–3335 (2011).
    [CrossRef] [PubMed]
  19. P. L. Franke, J. G. Haasnoot, and A. P. Zuur, “Tetrazoles as ligands. Part IV. Iron (II) complexes of monofunctional tetrazole ligands, showing high-spin ⇔ low-spin transitions,” Inorg. Chim. Acta59, 5–9 (1982).
    [CrossRef]
  20. S. Decurtins, P. Gütlich, C. P. Köhler, H. Spiering, and A. Hauser, “Light-induced excited spin state trapping in a transition-metal complex: The hexa-1-propyltetrazole-iron (II) tetrafluoroborate spin-crossover system,” Chem. Phys. Lett.105(1), 1–4 (1984).
    [CrossRef]
  21. S. Decurtins, P. Gütlich, K. M. Hasselbach, A. Hauser, and H. Spiering, “Light-induced excited-spin-state trapping in iron (II) spin-crossover systems - optical spectroscopic and magnetic susceptibility study,” Inorg. Chem.24(14), 2174–2178 (1985).
    [CrossRef]
  22. A. Ozarowski and B. R. McGarvey, “EPR study of manganese (II) and copper (II) in single crystals of the spin-crossover complex Fe(PTZ)6(BF4)2,” Inorg. Chem.28, 2262–2266 (1989).
    [CrossRef]
  23. A. Hauser, J. Jeftić, H. Romstedt, R. Hinek, and H. Spiering, “Cooperative phenomena and light-induced bistability in iron (II) spin-crossover compounds,” Coord. Chem. Rev.190–192, 471–491 (1999).
    [CrossRef]
  24. N. O. Moussa, G. Molnár, X. Ducros, A. Zwick, T. Tayagaki, K. Tanaka, and A. Bousseksou, “Decoupling of the molecular spin-state and the crystallographic phase in the spin-crossover complex [Fe(ptz)6](BF4)2 studied by Raman spectroscopy,” Chem. Phys. Lett.402(4-6), 503–509 (2005).
    [CrossRef]
  25. F. Varret, K. Boukheddaden, C. Chong, A. Goujon, B. Gillon, J. Jeftic, and A. Hauser, “Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal,” Eur. Phys. Lett.77(3), 30007 (2007).
    [CrossRef]
  26. H. Watanabe, H. Hirori, G. Molnár, A. Bousseksou, and K. Tanaka, “Temporal decoupling of spin and crystallographic phase transitions in Fe(ptz)6(BF4)2,” Phys. Rev. B79(18), 180405 (2009).
    [CrossRef]
  27. C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
    [CrossRef] [PubMed]
  28. G. Cloud, “Optical Methods in Experimental Mechanics Part 26: Subjective speckle,” Exp. Tech.31(2), 17–19 (2007).
    [CrossRef]
  29. S. Miyashita, Y. Konishi, M. Nishino, H. Tokoro, and P. A. Rikvold, “Realization of the mean-field universality class in spin-crossover materials,” Phys. Rev. B77(1), 014105 (2008).
    [CrossRef]
  30. S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
    [CrossRef]
  31. H. Watanabe, N. Brefuel, S. Mouri, J.-P. Tuchagues, E. Collet, and K. Tanaka, “Dynamical separation of spin and lattice degrees of freedom in the relaxation process from the photo-induced state,” Eur. Phys. Lett.96(1), 17004 (2011).
    [CrossRef]
  32. J. Lotka, “The growth of mixed populations: two species competing for a common food supply,” J. Wash. Acad. Sci.22, 461–469 (1932).
  33. V. Volterra, “Fluctuations in the Abundance of a Species considered Mathematically,” Nature118(2972), 558–560 (1926).
    [CrossRef]

2012 (1)

S. Bedoui, M. Lopes, W. Nicolazzi, S. Bonnet, S. Zheng, G. Molnár, and A. Bousseksou, “Triggering a phase transition by a spatially localized laser pulse: role of strain,” Phys. Rev. Lett.109(13), 135702 (2012).
[CrossRef] [PubMed]

2011 (2)

A. Bousseksou, G. Molnár, L. Salmon, and W. Nicolazzi, “Molecular spin crossover phenomenon: recent achievements and prospects,” Chem. Soc. Rev.40(6), 3313–3335 (2011).
[CrossRef] [PubMed]

H. Watanabe, N. Brefuel, S. Mouri, J.-P. Tuchagues, E. Collet, and K. Tanaka, “Dynamical separation of spin and lattice degrees of freedom in the relaxation process from the photo-induced state,” Eur. Phys. Lett.96(1), 17004 (2011).
[CrossRef]

2010 (3)

S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
[CrossRef]

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

H. Uemura and H. Okamoto, “Direct detection of the ultrafast response of charges and molecules in the photoinduced neutral-to-ionic transition of the organic tetrathiafulvalene-p-chloranil solid,” Phys. Rev. Lett.105(25), 258302 (2010).
[CrossRef] [PubMed]

2009 (1)

H. Watanabe, H. Hirori, G. Molnár, A. Bousseksou, and K. Tanaka, “Temporal decoupling of spin and crystallographic phase transitions in Fe(ptz)6(BF4)2,” Phys. Rev. B79(18), 180405 (2009).
[CrossRef]

2008 (1)

S. Miyashita, Y. Konishi, M. Nishino, H. Tokoro, and P. A. Rikvold, “Realization of the mean-field universality class in spin-crossover materials,” Phys. Rev. B77(1), 014105 (2008).
[CrossRef]

2007 (3)

F. Varret, K. Boukheddaden, C. Chong, A. Goujon, B. Gillon, J. Jeftic, and A. Hauser, “Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal,” Eur. Phys. Lett.77(3), 30007 (2007).
[CrossRef]

G. Cloud, “Optical Methods in Experimental Mechanics Part 26: Subjective speckle,” Exp. Tech.31(2), 17–19 (2007).
[CrossRef]

A. Bousseksou, G. Molnár, J. Real, and K. Tanaka, “Spin crossover and photomagnetism in dinuclear iron(II) compounds,” Coord. Chem. Rev.251(13-14), 1822–1833 (2007).
[CrossRef]

2005 (2)

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

N. O. Moussa, G. Molnár, X. Ducros, A. Zwick, T. Tayagaki, K. Tanaka, and A. Bousseksou, “Decoupling of the molecular spin-state and the crystallographic phase in the spin-crossover complex [Fe(ptz)6](BF4)2 studied by Raman spectroscopy,” Chem. Phys. Lett.402(4-6), 503–509 (2005).
[CrossRef]

2003 (1)

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

2002 (1)

S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura, “Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy,” Phys. Rev. Lett.88(5), 057402 (2002).
[CrossRef] [PubMed]

2001 (1)

A. Cavalleri, C. Tóth, C. W. Siders, J. A. Squier, F. Ráksi, P. Forget, and J. C. Kieffer, “Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition,” Phys. Rev. Lett.87(23), 237401 (2001).
[CrossRef] [PubMed]

2000 (1)

Y. Ogawa, S. Koshihara, K. Koshino, T. Ogawa, C. Urano, and H. Takagi, “Dynamical aspects of the photoinduced phase transition in spin-crossover complexes,” Phys. Rev. Lett.84(14), 3181–3184 (2000).
[CrossRef] [PubMed]

1999 (2)

S. Koshihara, Y. Takahashi, H. Sakai, Y. Tokura, and T. Luty, “Photoinduced cooperative charge transfer in low-dimensional organic crystals,” J. Phys. Chem. B103(14), 2592–2600 (1999).
[CrossRef]

A. Hauser, J. Jeftić, H. Romstedt, R. Hinek, and H. Spiering, “Cooperative phenomena and light-induced bistability in iron (II) spin-crossover compounds,” Coord. Chem. Rev.190–192, 471–491 (1999).
[CrossRef]

1992 (1)

S. Koshihara, Y. Tokura, K. Takeda, and T. Koda, “Reversible photoinduced phase transitions in single crystals of polydiacetylenes,” Phys. Rev. Lett.68(8), 1148–1151 (1992).
[CrossRef] [PubMed]

1990 (2)

L. M. Pecora and T. L. Carroll, “Synchronization in chaotic systems,” Phys. Rev. Lett.64(8), 821–824 (1990).
[CrossRef] [PubMed]

S. Koshihara, Y. Tokura, T. Mitani, G. Saito, and T. Koda, “Photoinduced valence instability in the organic molecular compound tetrathiafulvalene-p-chloranil (TTF-CA),” Phys. Rev. B Condens. Matter42(10), 6853–6856 (1990).
[CrossRef] [PubMed]

1989 (1)

A. Ozarowski and B. R. McGarvey, “EPR study of manganese (II) and copper (II) in single crystals of the spin-crossover complex Fe(PTZ)6(BF4)2,” Inorg. Chem.28, 2262–2266 (1989).
[CrossRef]

1985 (2)

S. Decurtins, P. Gütlich, K. M. Hasselbach, A. Hauser, and H. Spiering, “Light-induced excited-spin-state trapping in iron (II) spin-crossover systems - optical spectroscopic and magnetic susceptibility study,” Inorg. Chem.24(14), 2174–2178 (1985).
[CrossRef]

J. R. Ackerhalt, P. W. Milonni, and M.-L. Shih, “Chaos in quantum optics,” Phys. Rep.128(4-5), 205–300 (1985).
[CrossRef]

1984 (1)

S. Decurtins, P. Gütlich, C. P. Köhler, H. Spiering, and A. Hauser, “Light-induced excited spin state trapping in a transition-metal complex: The hexa-1-propyltetrazole-iron (II) tetrafluoroborate spin-crossover system,” Chem. Phys. Lett.105(1), 1–4 (1984).
[CrossRef]

1982 (1)

P. L. Franke, J. G. Haasnoot, and A. P. Zuur, “Tetrazoles as ligands. Part IV. Iron (II) complexes of monofunctional tetrazole ligands, showing high-spin ⇔ low-spin transitions,” Inorg. Chim. Acta59, 5–9 (1982).
[CrossRef]

1932 (1)

J. Lotka, “The growth of mixed populations: two species competing for a common food supply,” J. Wash. Acad. Sci.22, 461–469 (1932).

1926 (1)

V. Volterra, “Fluctuations in the Abundance of a Species considered Mathematically,” Nature118(2972), 558–560 (1926).
[CrossRef]

Ackerhalt, J. R.

J. R. Ackerhalt, P. W. Milonni, and M.-L. Shih, “Chaos in quantum optics,” Phys. Rep.128(4-5), 205–300 (1985).
[CrossRef]

Adachi, S.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Ameline, J.-C.

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

Bedoui, S.

S. Bedoui, M. Lopes, W. Nicolazzi, S. Bonnet, S. Zheng, G. Molnár, and A. Bousseksou, “Triggering a phase transition by a spatially localized laser pulse: role of strain,” Phys. Rev. Lett.109(13), 135702 (2012).
[CrossRef] [PubMed]

S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
[CrossRef]

Bonnet, S.

S. Bedoui, M. Lopes, W. Nicolazzi, S. Bonnet, S. Zheng, G. Molnár, and A. Bousseksou, “Triggering a phase transition by a spatially localized laser pulse: role of strain,” Phys. Rev. Lett.109(13), 135702 (2012).
[CrossRef] [PubMed]

S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
[CrossRef]

Bouchez, G.

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

Boukheddaden, K.

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

F. Varret, K. Boukheddaden, C. Chong, A. Goujon, B. Gillon, J. Jeftic, and A. Hauser, “Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal,” Eur. Phys. Lett.77(3), 30007 (2007).
[CrossRef]

Bousseksou, A.

S. Bedoui, M. Lopes, W. Nicolazzi, S. Bonnet, S. Zheng, G. Molnár, and A. Bousseksou, “Triggering a phase transition by a spatially localized laser pulse: role of strain,” Phys. Rev. Lett.109(13), 135702 (2012).
[CrossRef] [PubMed]

A. Bousseksou, G. Molnár, L. Salmon, and W. Nicolazzi, “Molecular spin crossover phenomenon: recent achievements and prospects,” Chem. Soc. Rev.40(6), 3313–3335 (2011).
[CrossRef] [PubMed]

S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
[CrossRef]

H. Watanabe, H. Hirori, G. Molnár, A. Bousseksou, and K. Tanaka, “Temporal decoupling of spin and crystallographic phase transitions in Fe(ptz)6(BF4)2,” Phys. Rev. B79(18), 180405 (2009).
[CrossRef]

A. Bousseksou, G. Molnár, J. Real, and K. Tanaka, “Spin crossover and photomagnetism in dinuclear iron(II) compounds,” Coord. Chem. Rev.251(13-14), 1822–1833 (2007).
[CrossRef]

N. O. Moussa, G. Molnár, X. Ducros, A. Zwick, T. Tayagaki, K. Tanaka, and A. Bousseksou, “Decoupling of the molecular spin-state and the crystallographic phase in the spin-crossover complex [Fe(ptz)6](BF4)2 studied by Raman spectroscopy,” Chem. Phys. Lett.402(4-6), 503–509 (2005).
[CrossRef]

Brefuel, N.

H. Watanabe, N. Brefuel, S. Mouri, J.-P. Tuchagues, E. Collet, and K. Tanaka, “Dynamical separation of spin and lattice degrees of freedom in the relaxation process from the photo-induced state,” Eur. Phys. Lett.96(1), 17004 (2011).
[CrossRef]

Buron-Le Cointe, M.

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Cailleau, H.

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Carroll, T. L.

L. M. Pecora and T. L. Carroll, “Synchronization in chaotic systems,” Phys. Rev. Lett.64(8), 821–824 (1990).
[CrossRef] [PubMed]

Cavalleri, A.

A. Cavalleri, C. Tóth, C. W. Siders, J. A. Squier, F. Ráksi, P. Forget, and J. C. Kieffer, “Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition,” Phys. Rev. Lett.87(23), 237401 (2001).
[CrossRef] [PubMed]

Chollet, M.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Chong, C.

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

F. Varret, K. Boukheddaden, C. Chong, A. Goujon, B. Gillon, J. Jeftic, and A. Hauser, “Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal,” Eur. Phys. Lett.77(3), 30007 (2007).
[CrossRef]

Cloud, G.

G. Cloud, “Optical Methods in Experimental Mechanics Part 26: Subjective speckle,” Exp. Tech.31(2), 17–19 (2007).
[CrossRef]

Collet, E.

H. Watanabe, N. Brefuel, S. Mouri, J.-P. Tuchagues, E. Collet, and K. Tanaka, “Dynamical separation of spin and lattice degrees of freedom in the relaxation process from the photo-induced state,” Eur. Phys. Lett.96(1), 17004 (2011).
[CrossRef]

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Decurtins, S.

S. Decurtins, P. Gütlich, K. M. Hasselbach, A. Hauser, and H. Spiering, “Light-induced excited-spin-state trapping in iron (II) spin-crossover systems - optical spectroscopic and magnetic susceptibility study,” Inorg. Chem.24(14), 2174–2178 (1985).
[CrossRef]

S. Decurtins, P. Gütlich, C. P. Köhler, H. Spiering, and A. Hauser, “Light-induced excited spin state trapping in a transition-metal complex: The hexa-1-propyltetrazole-iron (II) tetrafluoroborate spin-crossover system,” Chem. Phys. Lett.105(1), 1–4 (1984).
[CrossRef]

Denise, S.

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

Ducros, X.

N. O. Moussa, G. Molnár, X. Ducros, A. Zwick, T. Tayagaki, K. Tanaka, and A. Bousseksou, “Decoupling of the molecular spin-state and the crystallographic phase in the spin-crossover complex [Fe(ptz)6](BF4)2 studied by Raman spectroscopy,” Chem. Phys. Lett.402(4-6), 503–509 (2005).
[CrossRef]

Forget, P.

A. Cavalleri, C. Tóth, C. W. Siders, J. A. Squier, F. Ráksi, P. Forget, and J. C. Kieffer, “Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition,” Phys. Rev. Lett.87(23), 237401 (2001).
[CrossRef] [PubMed]

Franke, P. L.

P. L. Franke, J. G. Haasnoot, and A. P. Zuur, “Tetrazoles as ligands. Part IV. Iron (II) complexes of monofunctional tetrazole ligands, showing high-spin ⇔ low-spin transitions,” Inorg. Chim. Acta59, 5–9 (1982).
[CrossRef]

Fujinuma, K.

S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura, “Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy,” Phys. Rev. Lett.88(5), 057402 (2002).
[CrossRef] [PubMed]

Fukaya, S.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Garcia, Y.

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

Gillon, B.

F. Varret, K. Boukheddaden, C. Chong, A. Goujon, B. Gillon, J. Jeftic, and A. Hauser, “Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal,” Eur. Phys. Lett.77(3), 30007 (2007).
[CrossRef]

Goujon, A.

F. Varret, K. Boukheddaden, C. Chong, A. Goujon, B. Gillon, J. Jeftic, and A. Hauser, “Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal,” Eur. Phys. Lett.77(3), 30007 (2007).
[CrossRef]

Guerin, L.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Gütlich, P.

S. Decurtins, P. Gütlich, K. M. Hasselbach, A. Hauser, and H. Spiering, “Light-induced excited-spin-state trapping in iron (II) spin-crossover systems - optical spectroscopic and magnetic susceptibility study,” Inorg. Chem.24(14), 2174–2178 (1985).
[CrossRef]

S. Decurtins, P. Gütlich, C. P. Köhler, H. Spiering, and A. Hauser, “Light-induced excited spin state trapping in a transition-metal complex: The hexa-1-propyltetrazole-iron (II) tetrafluoroborate spin-crossover system,” Chem. Phys. Lett.105(1), 1–4 (1984).
[CrossRef]

Haasnoot, J. G.

P. L. Franke, J. G. Haasnoot, and A. P. Zuur, “Tetrazoles as ligands. Part IV. Iron (II) complexes of monofunctional tetrazole ligands, showing high-spin ⇔ low-spin transitions,” Inorg. Chim. Acta59, 5–9 (1982).
[CrossRef]

Hasegawa, T.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Hasselbach, K. M.

S. Decurtins, P. Gütlich, K. M. Hasselbach, A. Hauser, and H. Spiering, “Light-induced excited-spin-state trapping in iron (II) spin-crossover systems - optical spectroscopic and magnetic susceptibility study,” Inorg. Chem.24(14), 2174–2178 (1985).
[CrossRef]

Hauser, A.

F. Varret, K. Boukheddaden, C. Chong, A. Goujon, B. Gillon, J. Jeftic, and A. Hauser, “Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal,” Eur. Phys. Lett.77(3), 30007 (2007).
[CrossRef]

A. Hauser, J. Jeftić, H. Romstedt, R. Hinek, and H. Spiering, “Cooperative phenomena and light-induced bistability in iron (II) spin-crossover compounds,” Coord. Chem. Rev.190–192, 471–491 (1999).
[CrossRef]

S. Decurtins, P. Gütlich, K. M. Hasselbach, A. Hauser, and H. Spiering, “Light-induced excited-spin-state trapping in iron (II) spin-crossover systems - optical spectroscopic and magnetic susceptibility study,” Inorg. Chem.24(14), 2174–2178 (1985).
[CrossRef]

S. Decurtins, P. Gütlich, C. P. Köhler, H. Spiering, and A. Hauser, “Light-induced excited spin state trapping in a transition-metal complex: The hexa-1-propyltetrazole-iron (II) tetrafluoroborate spin-crossover system,” Chem. Phys. Lett.105(1), 1–4 (1984).
[CrossRef]

Hinek, R.

A. Hauser, J. Jeftić, H. Romstedt, R. Hinek, and H. Spiering, “Cooperative phenomena and light-induced bistability in iron (II) spin-crossover compounds,” Coord. Chem. Rev.190–192, 471–491 (1999).
[CrossRef]

Hirori, H.

H. Watanabe, H. Hirori, G. Molnár, A. Bousseksou, and K. Tanaka, “Temporal decoupling of spin and crystallographic phase transitions in Fe(ptz)6(BF4)2,” Phys. Rev. B79(18), 180405 (2009).
[CrossRef]

Ishikawa, T.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Iwai, S.

S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura, “Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy,” Phys. Rev. Lett.88(5), 057402 (2002).
[CrossRef] [PubMed]

Jeftic, J.

F. Varret, K. Boukheddaden, C. Chong, A. Goujon, B. Gillon, J. Jeftic, and A. Hauser, “Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal,” Eur. Phys. Lett.77(3), 30007 (2007).
[CrossRef]

A. Hauser, J. Jeftić, H. Romstedt, R. Hinek, and H. Spiering, “Cooperative phenomena and light-induced bistability in iron (II) spin-crossover compounds,” Coord. Chem. Rev.190–192, 471–491 (1999).
[CrossRef]

Kieffer, J. C.

A. Cavalleri, C. Tóth, C. W. Siders, J. A. Squier, F. Ráksi, P. Forget, and J. C. Kieffer, “Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition,” Phys. Rev. Lett.87(23), 237401 (2001).
[CrossRef] [PubMed]

Kishida, H.

S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura, “Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy,” Phys. Rev. Lett.88(5), 057402 (2002).
[CrossRef] [PubMed]

Koda, T.

S. Koshihara, Y. Tokura, K. Takeda, and T. Koda, “Reversible photoinduced phase transitions in single crystals of polydiacetylenes,” Phys. Rev. Lett.68(8), 1148–1151 (1992).
[CrossRef] [PubMed]

S. Koshihara, Y. Tokura, T. Mitani, G. Saito, and T. Koda, “Photoinduced valence instability in the organic molecular compound tetrathiafulvalene-p-chloranil (TTF-CA),” Phys. Rev. B Condens. Matter42(10), 6853–6856 (1990).
[CrossRef] [PubMed]

Köhler, C. P.

S. Decurtins, P. Gütlich, C. P. Köhler, H. Spiering, and A. Hauser, “Light-induced excited spin state trapping in a transition-metal complex: The hexa-1-propyltetrazole-iron (II) tetrafluoroborate spin-crossover system,” Chem. Phys. Lett.105(1), 1–4 (1984).
[CrossRef]

Konishi, Y.

S. Miyashita, Y. Konishi, M. Nishino, H. Tokoro, and P. A. Rikvold, “Realization of the mean-field universality class in spin-crossover materials,” Phys. Rev. B77(1), 014105 (2008).
[CrossRef]

Koshihara, S.

Y. Ogawa, S. Koshihara, K. Koshino, T. Ogawa, C. Urano, and H. Takagi, “Dynamical aspects of the photoinduced phase transition in spin-crossover complexes,” Phys. Rev. Lett.84(14), 3181–3184 (2000).
[CrossRef] [PubMed]

S. Koshihara, Y. Takahashi, H. Sakai, Y. Tokura, and T. Luty, “Photoinduced cooperative charge transfer in low-dimensional organic crystals,” J. Phys. Chem. B103(14), 2592–2600 (1999).
[CrossRef]

S. Koshihara, Y. Tokura, K. Takeda, and T. Koda, “Reversible photoinduced phase transitions in single crystals of polydiacetylenes,” Phys. Rev. Lett.68(8), 1148–1151 (1992).
[CrossRef] [PubMed]

S. Koshihara, Y. Tokura, T. Mitani, G. Saito, and T. Koda, “Photoinduced valence instability in the organic molecular compound tetrathiafulvalene-p-chloranil (TTF-CA),” Phys. Rev. B Condens. Matter42(10), 6853–6856 (1990).
[CrossRef] [PubMed]

Koshihara, S. Y.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Koshino, K.

Y. Ogawa, S. Koshihara, K. Koshino, T. Ogawa, C. Urano, and H. Takagi, “Dynamical aspects of the photoinduced phase transition in spin-crossover complexes,” Phys. Rev. Lett.84(14), 3181–3184 (2000).
[CrossRef] [PubMed]

Lemée-Cailleau, M.-H.

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Lopes, M.

S. Bedoui, M. Lopes, W. Nicolazzi, S. Bonnet, S. Zheng, G. Molnár, and A. Bousseksou, “Triggering a phase transition by a spatially localized laser pulse: role of strain,” Phys. Rev. Lett.109(13), 135702 (2012).
[CrossRef] [PubMed]

Lotka, J.

J. Lotka, “The growth of mixed populations: two species competing for a common food supply,” J. Wash. Acad. Sci.22, 461–469 (1932).

Luty, T.

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

S. Koshihara, Y. Takahashi, H. Sakai, Y. Tokura, and T. Luty, “Photoinduced cooperative charge transfer in low-dimensional organic crystals,” J. Phys. Chem. B103(14), 2592–2600 (1999).
[CrossRef]

Matsuda, K.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

McGarvey, B. R.

A. Ozarowski and B. R. McGarvey, “EPR study of manganese (II) and copper (II) in single crystals of the spin-crossover complex Fe(PTZ)6(BF4)2,” Inorg. Chem.28, 2262–2266 (1989).
[CrossRef]

Meyer, M.

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Milonni, P. W.

J. R. Ackerhalt, P. W. Milonni, and M.-L. Shih, “Chaos in quantum optics,” Phys. Rep.128(4-5), 205–300 (1985).
[CrossRef]

Mishra, H.

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

Mitani, T.

S. Koshihara, Y. Tokura, T. Mitani, G. Saito, and T. Koda, “Photoinduced valence instability in the organic molecular compound tetrathiafulvalene-p-chloranil (TTF-CA),” Phys. Rev. B Condens. Matter42(10), 6853–6856 (1990).
[CrossRef] [PubMed]

Miyashita, S.

S. Miyashita, Y. Konishi, M. Nishino, H. Tokoro, and P. A. Rikvold, “Realization of the mean-field universality class in spin-crossover materials,” Phys. Rev. B77(1), 014105 (2008).
[CrossRef]

Molnár, G.

S. Bedoui, M. Lopes, W. Nicolazzi, S. Bonnet, S. Zheng, G. Molnár, and A. Bousseksou, “Triggering a phase transition by a spatially localized laser pulse: role of strain,” Phys. Rev. Lett.109(13), 135702 (2012).
[CrossRef] [PubMed]

A. Bousseksou, G. Molnár, L. Salmon, and W. Nicolazzi, “Molecular spin crossover phenomenon: recent achievements and prospects,” Chem. Soc. Rev.40(6), 3313–3335 (2011).
[CrossRef] [PubMed]

S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
[CrossRef]

H. Watanabe, H. Hirori, G. Molnár, A. Bousseksou, and K. Tanaka, “Temporal decoupling of spin and crystallographic phase transitions in Fe(ptz)6(BF4)2,” Phys. Rev. B79(18), 180405 (2009).
[CrossRef]

A. Bousseksou, G. Molnár, J. Real, and K. Tanaka, “Spin crossover and photomagnetism in dinuclear iron(II) compounds,” Coord. Chem. Rev.251(13-14), 1822–1833 (2007).
[CrossRef]

N. O. Moussa, G. Molnár, X. Ducros, A. Zwick, T. Tayagaki, K. Tanaka, and A. Bousseksou, “Decoupling of the molecular spin-state and the crystallographic phase in the spin-crossover complex [Fe(ptz)6](BF4)2 studied by Raman spectroscopy,” Chem. Phys. Lett.402(4-6), 503–509 (2005).
[CrossRef]

Mouri, S.

H. Watanabe, N. Brefuel, S. Mouri, J.-P. Tuchagues, E. Collet, and K. Tanaka, “Dynamical separation of spin and lattice degrees of freedom in the relaxation process from the photo-induced state,” Eur. Phys. Lett.96(1), 17004 (2011).
[CrossRef]

Moussa, N. O.

N. O. Moussa, G. Molnár, X. Ducros, A. Zwick, T. Tayagaki, K. Tanaka, and A. Bousseksou, “Decoupling of the molecular spin-state and the crystallographic phase in the spin-crossover complex [Fe(ptz)6](BF4)2 studied by Raman spectroscopy,” Chem. Phys. Lett.402(4-6), 503–509 (2005).
[CrossRef]

Naik, A. D.

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

Nicolazzi, W.

S. Bedoui, M. Lopes, W. Nicolazzi, S. Bonnet, S. Zheng, G. Molnár, and A. Bousseksou, “Triggering a phase transition by a spatially localized laser pulse: role of strain,” Phys. Rev. Lett.109(13), 135702 (2012).
[CrossRef] [PubMed]

A. Bousseksou, G. Molnár, L. Salmon, and W. Nicolazzi, “Molecular spin crossover phenomenon: recent achievements and prospects,” Chem. Soc. Rev.40(6), 3313–3335 (2011).
[CrossRef] [PubMed]

S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
[CrossRef]

Nishino, M.

S. Miyashita, Y. Konishi, M. Nishino, H. Tokoro, and P. A. Rikvold, “Realization of the mean-field universality class in spin-crossover materials,” Phys. Rev. B77(1), 014105 (2008).
[CrossRef]

Ogawa, T.

Y. Ogawa, S. Koshihara, K. Koshino, T. Ogawa, C. Urano, and H. Takagi, “Dynamical aspects of the photoinduced phase transition in spin-crossover complexes,” Phys. Rev. Lett.84(14), 3181–3184 (2000).
[CrossRef] [PubMed]

Ogawa, Y.

Y. Ogawa, S. Koshihara, K. Koshino, T. Ogawa, C. Urano, and H. Takagi, “Dynamical aspects of the photoinduced phase transition in spin-crossover complexes,” Phys. Rev. Lett.84(14), 3181–3184 (2000).
[CrossRef] [PubMed]

Okamoto, H.

H. Uemura and H. Okamoto, “Direct detection of the ultrafast response of charges and molecules in the photoinduced neutral-to-ionic transition of the organic tetrathiafulvalene-p-chloranil solid,” Phys. Rev. Lett.105(25), 258302 (2010).
[CrossRef] [PubMed]

S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura, “Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy,” Phys. Rev. Lett.88(5), 057402 (2002).
[CrossRef] [PubMed]

Ota, A.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Ozarowski, A.

A. Ozarowski and B. R. McGarvey, “EPR study of manganese (II) and copper (II) in single crystals of the spin-crossover complex Fe(PTZ)6(BF4)2,” Inorg. Chem.28, 2262–2266 (1989).
[CrossRef]

Pecora, L. M.

L. M. Pecora and T. L. Carroll, “Synchronization in chaotic systems,” Phys. Rev. Lett.64(8), 821–824 (1990).
[CrossRef] [PubMed]

Quintero, C.

S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
[CrossRef]

Rabiller, P.

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Ráksi, F.

A. Cavalleri, C. Tóth, C. W. Siders, J. A. Squier, F. Ráksi, P. Forget, and J. C. Kieffer, “Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition,” Phys. Rev. Lett.87(23), 237401 (2001).
[CrossRef] [PubMed]

Real, J.

A. Bousseksou, G. Molnár, J. Real, and K. Tanaka, “Spin crossover and photomagnetism in dinuclear iron(II) compounds,” Coord. Chem. Rev.251(13-14), 1822–1833 (2007).
[CrossRef]

Rikvold, P. A.

S. Miyashita, Y. Konishi, M. Nishino, H. Tokoro, and P. A. Rikvold, “Realization of the mean-field universality class in spin-crossover materials,” Phys. Rev. B77(1), 014105 (2008).
[CrossRef]

Romstedt, H.

A. Hauser, J. Jeftić, H. Romstedt, R. Hinek, and H. Spiering, “Cooperative phenomena and light-induced bistability in iron (II) spin-crossover compounds,” Coord. Chem. Rev.190–192, 471–491 (1999).
[CrossRef]

Saito, G.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

S. Koshihara, Y. Tokura, T. Mitani, G. Saito, and T. Koda, “Photoinduced valence instability in the organic molecular compound tetrathiafulvalene-p-chloranil (TTF-CA),” Phys. Rev. B Condens. Matter42(10), 6853–6856 (1990).
[CrossRef] [PubMed]

Sakai, H.

S. Koshihara, Y. Takahashi, H. Sakai, Y. Tokura, and T. Luty, “Photoinduced cooperative charge transfer in low-dimensional organic crystals,” J. Phys. Chem. B103(14), 2592–2600 (1999).
[CrossRef]

Salmon, L.

A. Bousseksou, G. Molnár, L. Salmon, and W. Nicolazzi, “Molecular spin crossover phenomenon: recent achievements and prospects,” Chem. Soc. Rev.40(6), 3313–3335 (2011).
[CrossRef] [PubMed]

S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
[CrossRef]

Shepherd, H. J.

S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
[CrossRef]

Shih, M.-L.

J. R. Ackerhalt, P. W. Milonni, and M.-L. Shih, “Chaos in quantum optics,” Phys. Rep.128(4-5), 205–300 (1985).
[CrossRef]

Shimoda, H.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Siders, C. W.

A. Cavalleri, C. Tóth, C. W. Siders, J. A. Squier, F. Ráksi, P. Forget, and J. C. Kieffer, “Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition,” Phys. Rev. Lett.87(23), 237401 (2001).
[CrossRef] [PubMed]

Spiering, H.

A. Hauser, J. Jeftić, H. Romstedt, R. Hinek, and H. Spiering, “Cooperative phenomena and light-induced bistability in iron (II) spin-crossover compounds,” Coord. Chem. Rev.190–192, 471–491 (1999).
[CrossRef]

S. Decurtins, P. Gütlich, K. M. Hasselbach, A. Hauser, and H. Spiering, “Light-induced excited-spin-state trapping in iron (II) spin-crossover systems - optical spectroscopic and magnetic susceptibility study,” Inorg. Chem.24(14), 2174–2178 (1985).
[CrossRef]

S. Decurtins, P. Gütlich, C. P. Köhler, H. Spiering, and A. Hauser, “Light-induced excited spin state trapping in a transition-metal complex: The hexa-1-propyltetrazole-iron (II) tetrafluoroborate spin-crossover system,” Chem. Phys. Lett.105(1), 1–4 (1984).
[CrossRef]

Squier, J. A.

A. Cavalleri, C. Tóth, C. W. Siders, J. A. Squier, F. Ráksi, P. Forget, and J. C. Kieffer, “Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition,” Phys. Rev. Lett.87(23), 237401 (2001).
[CrossRef] [PubMed]

Takagi, H.

Y. Ogawa, S. Koshihara, K. Koshino, T. Ogawa, C. Urano, and H. Takagi, “Dynamical aspects of the photoinduced phase transition in spin-crossover complexes,” Phys. Rev. Lett.84(14), 3181–3184 (2000).
[CrossRef] [PubMed]

Takahashi, Y.

S. Koshihara, Y. Takahashi, H. Sakai, Y. Tokura, and T. Luty, “Photoinduced cooperative charge transfer in low-dimensional organic crystals,” J. Phys. Chem. B103(14), 2592–2600 (1999).
[CrossRef]

Takeda, K.

S. Koshihara, Y. Tokura, K. Takeda, and T. Koda, “Reversible photoinduced phase transitions in single crystals of polydiacetylenes,” Phys. Rev. Lett.68(8), 1148–1151 (1992).
[CrossRef] [PubMed]

Tanaka, K.

H. Watanabe, N. Brefuel, S. Mouri, J.-P. Tuchagues, E. Collet, and K. Tanaka, “Dynamical separation of spin and lattice degrees of freedom in the relaxation process from the photo-induced state,” Eur. Phys. Lett.96(1), 17004 (2011).
[CrossRef]

H. Watanabe, H. Hirori, G. Molnár, A. Bousseksou, and K. Tanaka, “Temporal decoupling of spin and crystallographic phase transitions in Fe(ptz)6(BF4)2,” Phys. Rev. B79(18), 180405 (2009).
[CrossRef]

A. Bousseksou, G. Molnár, J. Real, and K. Tanaka, “Spin crossover and photomagnetism in dinuclear iron(II) compounds,” Coord. Chem. Rev.251(13-14), 1822–1833 (2007).
[CrossRef]

N. O. Moussa, G. Molnár, X. Ducros, A. Zwick, T. Tayagaki, K. Tanaka, and A. Bousseksou, “Decoupling of the molecular spin-state and the crystallographic phase in the spin-crossover complex [Fe(ptz)6](BF4)2 studied by Raman spectroscopy,” Chem. Phys. Lett.402(4-6), 503–509 (2005).
[CrossRef]

Tanaka, S.

S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura, “Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy,” Phys. Rev. Lett.88(5), 057402 (2002).
[CrossRef] [PubMed]

Tayagaki, T.

N. O. Moussa, G. Molnár, X. Ducros, A. Zwick, T. Tayagaki, K. Tanaka, and A. Bousseksou, “Decoupling of the molecular spin-state and the crystallographic phase in the spin-crossover complex [Fe(ptz)6](BF4)2 studied by Raman spectroscopy,” Chem. Phys. Lett.402(4-6), 503–509 (2005).
[CrossRef]

Tazaki, R.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Techert, S.

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Tokoro, H.

S. Miyashita, Y. Konishi, M. Nishino, H. Tokoro, and P. A. Rikvold, “Realization of the mean-field universality class in spin-crossover materials,” Phys. Rev. B77(1), 014105 (2008).
[CrossRef]

Tokura, Y.

S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura, “Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy,” Phys. Rev. Lett.88(5), 057402 (2002).
[CrossRef] [PubMed]

S. Koshihara, Y. Takahashi, H. Sakai, Y. Tokura, and T. Luty, “Photoinduced cooperative charge transfer in low-dimensional organic crystals,” J. Phys. Chem. B103(14), 2592–2600 (1999).
[CrossRef]

S. Koshihara, Y. Tokura, K. Takeda, and T. Koda, “Reversible photoinduced phase transitions in single crystals of polydiacetylenes,” Phys. Rev. Lett.68(8), 1148–1151 (1992).
[CrossRef] [PubMed]

S. Koshihara, Y. Tokura, T. Mitani, G. Saito, and T. Koda, “Photoinduced valence instability in the organic molecular compound tetrathiafulvalene-p-chloranil (TTF-CA),” Phys. Rev. B Condens. Matter42(10), 6853–6856 (1990).
[CrossRef] [PubMed]

Tóth, C.

A. Cavalleri, C. Tóth, C. W. Siders, J. A. Squier, F. Ráksi, P. Forget, and J. C. Kieffer, “Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition,” Phys. Rev. Lett.87(23), 237401 (2001).
[CrossRef] [PubMed]

Toupet, L.

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Tuchagues, J.-P.

H. Watanabe, N. Brefuel, S. Mouri, J.-P. Tuchagues, E. Collet, and K. Tanaka, “Dynamical separation of spin and lattice degrees of freedom in the relaxation process from the photo-induced state,” Eur. Phys. Lett.96(1), 17004 (2011).
[CrossRef]

Uchida, N.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Uemura, H.

H. Uemura and H. Okamoto, “Direct detection of the ultrafast response of charges and molecules in the photoinduced neutral-to-ionic transition of the organic tetrathiafulvalene-p-chloranil solid,” Phys. Rev. Lett.105(25), 258302 (2010).
[CrossRef] [PubMed]

Urano, C.

Y. Ogawa, S. Koshihara, K. Koshino, T. Ogawa, C. Urano, and H. Takagi, “Dynamical aspects of the photoinduced phase transition in spin-crossover complexes,” Phys. Rev. Lett.84(14), 3181–3184 (2000).
[CrossRef] [PubMed]

Varret, F.

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

F. Varret, K. Boukheddaden, C. Chong, A. Goujon, B. Gillon, J. Jeftic, and A. Hauser, “Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal,” Eur. Phys. Lett.77(3), 30007 (2007).
[CrossRef]

Volterra, V.

V. Volterra, “Fluctuations in the Abundance of a Species considered Mathematically,” Nature118(2972), 558–560 (1926).
[CrossRef]

Watanabe, H.

H. Watanabe, N. Brefuel, S. Mouri, J.-P. Tuchagues, E. Collet, and K. Tanaka, “Dynamical separation of spin and lattice degrees of freedom in the relaxation process from the photo-induced state,” Eur. Phys. Lett.96(1), 17004 (2011).
[CrossRef]

H. Watanabe, H. Hirori, G. Molnár, A. Bousseksou, and K. Tanaka, “Temporal decoupling of spin and crystallographic phase transitions in Fe(ptz)6(BF4)2,” Phys. Rev. B79(18), 180405 (2009).
[CrossRef]

Wulff, M.

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Yamochi, H.

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

Zheng, S.

S. Bedoui, M. Lopes, W. Nicolazzi, S. Bonnet, S. Zheng, G. Molnár, and A. Bousseksou, “Triggering a phase transition by a spatially localized laser pulse: role of strain,” Phys. Rev. Lett.109(13), 135702 (2012).
[CrossRef] [PubMed]

Zuur, A. P.

P. L. Franke, J. G. Haasnoot, and A. P. Zuur, “Tetrazoles as ligands. Part IV. Iron (II) complexes of monofunctional tetrazole ligands, showing high-spin ⇔ low-spin transitions,” Inorg. Chim. Acta59, 5–9 (1982).
[CrossRef]

Zwick, A.

N. O. Moussa, G. Molnár, X. Ducros, A. Zwick, T. Tayagaki, K. Tanaka, and A. Bousseksou, “Decoupling of the molecular spin-state and the crystallographic phase in the spin-crossover complex [Fe(ptz)6](BF4)2 studied by Raman spectroscopy,” Chem. Phys. Lett.402(4-6), 503–509 (2005).
[CrossRef]

Chem. Phys. Lett. (3)

S. Decurtins, P. Gütlich, C. P. Köhler, H. Spiering, and A. Hauser, “Light-induced excited spin state trapping in a transition-metal complex: The hexa-1-propyltetrazole-iron (II) tetrafluoroborate spin-crossover system,” Chem. Phys. Lett.105(1), 1–4 (1984).
[CrossRef]

N. O. Moussa, G. Molnár, X. Ducros, A. Zwick, T. Tayagaki, K. Tanaka, and A. Bousseksou, “Decoupling of the molecular spin-state and the crystallographic phase in the spin-crossover complex [Fe(ptz)6](BF4)2 studied by Raman spectroscopy,” Chem. Phys. Lett.402(4-6), 503–509 (2005).
[CrossRef]

S. Bedoui, G. Molnár, S. Bonnet, C. Quintero, H. J. Shepherd, W. Nicolazzi, L. Salmon, and A. Bousseksou, “Raman spectroscopic and optical imaging of high spin/low spin domains in a spin crossover complex,” Chem. Phys. Lett.499(1-3), 94–99 (2010).
[CrossRef]

Chem. Soc. Rev. (1)

A. Bousseksou, G. Molnár, L. Salmon, and W. Nicolazzi, “Molecular spin crossover phenomenon: recent achievements and prospects,” Chem. Soc. Rev.40(6), 3313–3335 (2011).
[CrossRef] [PubMed]

Coord. Chem. Rev. (2)

A. Bousseksou, G. Molnár, J. Real, and K. Tanaka, “Spin crossover and photomagnetism in dinuclear iron(II) compounds,” Coord. Chem. Rev.251(13-14), 1822–1833 (2007).
[CrossRef]

A. Hauser, J. Jeftić, H. Romstedt, R. Hinek, and H. Spiering, “Cooperative phenomena and light-induced bistability in iron (II) spin-crossover compounds,” Coord. Chem. Rev.190–192, 471–491 (1999).
[CrossRef]

Eur. Phys. Lett. (2)

F. Varret, K. Boukheddaden, C. Chong, A. Goujon, B. Gillon, J. Jeftic, and A. Hauser, “Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal,” Eur. Phys. Lett.77(3), 30007 (2007).
[CrossRef]

H. Watanabe, N. Brefuel, S. Mouri, J.-P. Tuchagues, E. Collet, and K. Tanaka, “Dynamical separation of spin and lattice degrees of freedom in the relaxation process from the photo-induced state,” Eur. Phys. Lett.96(1), 17004 (2011).
[CrossRef]

Exp. Tech. (1)

G. Cloud, “Optical Methods in Experimental Mechanics Part 26: Subjective speckle,” Exp. Tech.31(2), 17–19 (2007).
[CrossRef]

Inorg. Chem. (2)

S. Decurtins, P. Gütlich, K. M. Hasselbach, A. Hauser, and H. Spiering, “Light-induced excited-spin-state trapping in iron (II) spin-crossover systems - optical spectroscopic and magnetic susceptibility study,” Inorg. Chem.24(14), 2174–2178 (1985).
[CrossRef]

A. Ozarowski and B. R. McGarvey, “EPR study of manganese (II) and copper (II) in single crystals of the spin-crossover complex Fe(PTZ)6(BF4)2,” Inorg. Chem.28, 2262–2266 (1989).
[CrossRef]

Inorg. Chim. Acta (1)

P. L. Franke, J. G. Haasnoot, and A. P. Zuur, “Tetrazoles as ligands. Part IV. Iron (II) complexes of monofunctional tetrazole ligands, showing high-spin ⇔ low-spin transitions,” Inorg. Chim. Acta59, 5–9 (1982).
[CrossRef]

J. Phys. Chem. B (2)

S. Koshihara, Y. Takahashi, H. Sakai, Y. Tokura, and T. Luty, “Photoinduced cooperative charge transfer in low-dimensional organic crystals,” J. Phys. Chem. B103(14), 2592–2600 (1999).
[CrossRef]

C. Chong, H. Mishra, K. Boukheddaden, S. Denise, G. Bouchez, E. Collet, J.-C. Ameline, A. D. Naik, Y. Garcia, and F. Varret, “Electronic and structural aspects of spin transitions observed by optical microscopy. The Case of [Fe(ptz)6](BF4)2.,” J. Phys. Chem. B114(5), 1975–1984 (2010).
[CrossRef] [PubMed]

J. Wash. Acad. Sci. (1)

J. Lotka, “The growth of mixed populations: two species competing for a common food supply,” J. Wash. Acad. Sci.22, 461–469 (1932).

Nature (1)

V. Volterra, “Fluctuations in the Abundance of a Species considered Mathematically,” Nature118(2972), 558–560 (1926).
[CrossRef]

Phys. Rep. (1)

J. R. Ackerhalt, P. W. Milonni, and M.-L. Shih, “Chaos in quantum optics,” Phys. Rep.128(4-5), 205–300 (1985).
[CrossRef]

Phys. Rev. B (2)

S. Miyashita, Y. Konishi, M. Nishino, H. Tokoro, and P. A. Rikvold, “Realization of the mean-field universality class in spin-crossover materials,” Phys. Rev. B77(1), 014105 (2008).
[CrossRef]

H. Watanabe, H. Hirori, G. Molnár, A. Bousseksou, and K. Tanaka, “Temporal decoupling of spin and crystallographic phase transitions in Fe(ptz)6(BF4)2,” Phys. Rev. B79(18), 180405 (2009).
[CrossRef]

Phys. Rev. B Condens. Matter (1)

S. Koshihara, Y. Tokura, T. Mitani, G. Saito, and T. Koda, “Photoinduced valence instability in the organic molecular compound tetrathiafulvalene-p-chloranil (TTF-CA),” Phys. Rev. B Condens. Matter42(10), 6853–6856 (1990).
[CrossRef] [PubMed]

Phys. Rev. Lett. (7)

S. Koshihara, Y. Tokura, K. Takeda, and T. Koda, “Reversible photoinduced phase transitions in single crystals of polydiacetylenes,” Phys. Rev. Lett.68(8), 1148–1151 (1992).
[CrossRef] [PubMed]

L. M. Pecora and T. L. Carroll, “Synchronization in chaotic systems,” Phys. Rev. Lett.64(8), 821–824 (1990).
[CrossRef] [PubMed]

Y. Ogawa, S. Koshihara, K. Koshino, T. Ogawa, C. Urano, and H. Takagi, “Dynamical aspects of the photoinduced phase transition in spin-crossover complexes,” Phys. Rev. Lett.84(14), 3181–3184 (2000).
[CrossRef] [PubMed]

S. Bedoui, M. Lopes, W. Nicolazzi, S. Bonnet, S. Zheng, G. Molnár, and A. Bousseksou, “Triggering a phase transition by a spatially localized laser pulse: role of strain,” Phys. Rev. Lett.109(13), 135702 (2012).
[CrossRef] [PubMed]

S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura, “Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy,” Phys. Rev. Lett.88(5), 057402 (2002).
[CrossRef] [PubMed]

H. Uemura and H. Okamoto, “Direct detection of the ultrafast response of charges and molecules in the photoinduced neutral-to-ionic transition of the organic tetrathiafulvalene-p-chloranil solid,” Phys. Rev. Lett.105(25), 258302 (2010).
[CrossRef] [PubMed]

A. Cavalleri, C. Tóth, C. W. Siders, J. A. Squier, F. Ráksi, P. Forget, and J. C. Kieffer, “Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition,” Phys. Rev. Lett.87(23), 237401 (2001).
[CrossRef] [PubMed]

Science (2)

M. Chollet, L. Guerin, N. Uchida, S. Fukaya, H. Shimoda, T. Ishikawa, K. Matsuda, T. Hasegawa, A. Ota, H. Yamochi, G. Saito, R. Tazaki, S. Adachi, and S. Y. Koshihara, “Gigantic photoresponse in 1/4-filled-band organic salt (EDO-TTF)2PF6.,” Science307(5706), 86–89 (2005).
[CrossRef] [PubMed]

E. Collet, M.-H. Lemée-Cailleau, M. Buron-Le Cointe, H. Cailleau, M. Wulff, T. Luty, S. Y. Koshihara, M. Meyer, L. Toupet, P. Rabiller, and S. Techert, “Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal,” Science300(5619), 612–615 (2003).
[CrossRef] [PubMed]

Other (4)

H. Haken, Laser Light Dynamics (North-Holland Pub. Company, 1985).

P. Gütlich and H. A. Goodwin, “Topics in Current Chemistry 233–235,” in Spin Crossover in Transition Metal Compounds I –III (Springer, 2004).

A. Uchida, F. Rogister, J. García-Ojalvo, and R. Roy, “Synchronization and communication with chaotic laser systems,” in Progress in Optics, E. Wolf, ed. (Elsevier, 2005), pp. 203–341.

K. Nasu, Photoinduced Phase Transitions (World Scientific Publishing, 2004).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (5)

Fig. 1
Fig. 1

(a) Experimental setup for image measurement. The pair of lenses (OL and L1) is placed so as to fulfill the imaging condition. The sample is placed in a cryostat. To obtain the defocused spot necessary to produce wide-range irradiation, the collimated laser beam is focused in front of the microscopic objective lens by the lens pair of L2 and L3. (b) Arrangement of pump (2.33 eV cw laser) and probe (halogen lamp) lights in TA measurement. The pump light has a larger diameter than the probe light. These lights propagate in opposite directions. (c) Transmission picture of Fe(ptz)6(BF4)2 under illumination by the halogen lamp. Dotted area indicates the target of imaging and TA measurements.

Fig. 2
Fig. 2

(a) Reflection image of Fe(ptz)6(BF4)2 at 80 K under cw laser illumination (2.33 eV, 50 mW/mm2). Gray scale shows counts per 100 ms. Open square indicates the region over which the intensity is integrated to evaluate the temporal evolution of the speckle pattern [see Fig. 3(a)]. (b) Dynamic structure factor calculated from the spatiotemporal fluctuation of the speckle pattern at 80 K. Intensity is normalized by the maximum intensity.

Fig. 3
Fig. 3

(a) Temporal evolution of the integrated intensity in the region indicated by open square in Fig. 2(a) at 65, 80, and 100 K under cw laser illumination. Intensity is normalized by the average value, which is indicated by the broken line. The curve is offset for clarity. (b) Temporal evolution of HS fraction at 65, 80, and 100 K under cw laser illumination.

Fig. 4
Fig. 4

(a) Frequency dependence of the dynamic factor at different temperatures. Intensity is normalized by maximum intensity observed at 80 K. (b) Temperature dependence of HS fraction under cw laser illumination. The broken curve is guide to the eye (c) Peak frequency of the dynamic factor under cw laser illumination (left axis) and relaxation rate of HS phase in the dark (right axis) as a function of temperature. The solid curve is the fitting curve. The inset shows the correlation between the peak frequency and the relaxation rate. The solid line is the result of the linear fitting.

Fig. 5
Fig. 5

(a)—(d) Schematic diagram of the mechanism of the speckle oscillation. The light irradiation induces the spin-state transition from the LS to the HS state (ab), leading to the increase of the number of the HT lattices (b→c). The increase of the HT lattices causes the lattice mismatch between the surface and inside of the sample, leading to the decrease of the HS state (c→d) and the HT lattice (d→a). (e) Temporal evolution of the number of the LT lattices and HS-state molecules obtained from numerical solutions of Eqs. (3) and (4). The parameters used are J1 = J2 = 0.046, kLT = kLT = 0.46, NLT(0) = 10, NHS(0) = 11.

Equations (4)

Equations on this page are rendered with MathJax. Learn more.

S(ω,k)= | I(t,r) e i(kr-ωt) dt d 2 r | 2
σ ( ω ) = S ( ω , k ) d 2 k .
N ˙ LT =( J 1 N HS + k LT ) N LT R LT ( N HS ) N LT ,
N ˙ HS =( J 2 N LT k HS ) N HS R HS ( N LT ) N HS ,

Metrics