Abstract

We demonstrate optical time-domain spectroscopy from femtoseconds to nanoseconds using an ultrafast dual-fiber-laser system with kilohertz continuous scanning rates. Utilizing different wavelengths for the pump and probe beams, we exploit this system’s broad range of timescales for quantitative studies of thermal transport and the detection of coherent spin and lattice excitations in epitaxial magnetic thin films. The extraordinary temporal dynamic range provides a way to connect the fast and slow timescales in the observation of dissipation and decoherence processes.

© 2008 Optical Society of America

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  1. B. Perrin, "Investigation of short-time heat transfer effects by an optical pump-probe method," in Microscale and Nanoscale Heat Transfer, topics in Applied Physics, S. Voltz, ed., (Springer, Berlin, 2007), Vol. 107, pp. 333-359.
    [CrossRef]
  2. P. A. Elzinga, F. E. Lytle, Y. Jiang, G. B. King, and N. M. Laurendeau, "Pump probe spectroscopy by asynchronous optical-sampling," Appl. Spectrosc. 41, 2-4 (1987).
    [CrossRef]
  3. G. A. Antonelli, B. Perrin, B. C. Daly, and D. G. Cahill, "Characterization of mechanical and thermal properties using ultrafast optical metrology," MRS Bull. 31, 607-613 (2006).
    [CrossRef]
  4. R. Merlin, "Generating coherent THz phonons with light pulses," Solid-State Commun. 102, 207-220 (1997).
    [CrossRef]
  5. W. S. Capinski and H. J. Maris, "Improved apparatus for Picosecond Pump-and-Probe Optical Measurements," Rev. Sci. Instrum. 67, 2720-2726 (1996).
    [CrossRef]
  6. E. Lill, S. Schneider, and F. Dorr, "Rapid optical sampling of relaxation-phenomena employing two time-correlated picosecond pulse trains,?Appl. Phys. 14, 399-401 (1977).
    [CrossRef]
  7. W. T. Barnes, Jr., ?Modulated gain spectroscopy, ? Ph.D. Dissertation, Purdue University, West Lafayette, Indiana (1980).
  8. A. F. Bartels, F. Hudert, C. Janke, T. Dekorsy, and K. Kohler, "Femtosecond time-resolved optical pump-probe spectroscopy at kilohertz-scan-rates over nanosecond-time-delays without mechanical delay line," Appl. Phys. Lett. 88, 041117 (2006).
    [CrossRef]
  9. http://www.menlosystems.com
  10. S. Adachi, S. Takeyama, and Y. Takagi, "Dual wavelength optical sampling technique for ultrafast transient bleaching spectroscopy," Opt. Commun. 117, 71-77 (1995).
    [CrossRef]
  11. J. S. Lannin, J. M. Calleja, and M. Cardona, "Second-order Raman scattering in the group-Vb semimetals: Bi, Sb, and As," Phys. Rev. B 12, 585-593 (1975).
    [CrossRef]
  12. G. A. Garrett, T. F. Albrecht, J. F. Whitaker, and R. Merlin, "Coherent THz phonons driven by light pulses and the Sb problem: What is the mechanism?," Phys. Rev. Lett. 77, 3661 (1996).
    [CrossRef] [PubMed]
  13. R. J. Stevens, A. N. Smith, and P. M. Norris, "Signal analysis and characterization of experimental setup for the transient thermoreflectance technique," Rev. Sci. Instrum. 77, 084901 (2006).
    [CrossRef]
  14. K. Postava, H. Jaffres, A. Schuhl, F. Nguyen Van Dau, M. Goiran, and A. R. Fert, "Linear and quadratic magneto-optical measurements of the spin reorientation in epitaxial Fe films on MgO," J. Magn. Magn. Mater. 172, 199-208 (1997).
    [CrossRef]
  15. J. Zak, E. R. Moog, C. Liu, and S. D. Bader, "Magneto-optics of multilayers with arbitrary magnetization directions," Phys. Rev. B 43, 6423 (1991).
    [CrossRef]
  16. G. C. Cho, W. Kütt, and H. Kurz, "Subpicosecond time-resolved coherent-phonon oscillations in GaAs," Phys. Rev. Lett. 65, 764-766 (1990).
    [CrossRef] [PubMed]
  17. M. I. Kaganov, I. M. Lifshitz, and L. V. Tanatarov, "Relaxation between electrons and the crystalline lattice," Sov. Phys. JETP 4, 173-180 (1957).
  18. R. J. Stevens, A. N. Smith, and P. M. Norris, "Measurement of thermal boundary conductance of a series of metal-dielectric interfaces by the transient thermoreflectance technique," J. Heat Transfer 127, 315-322 (2005).
    [CrossRef]
  19. The heat diffusion model (equations 2-7 from [15]) can be applied if the time constant of heat diffusion in film (?f) and interface time constant (?i) follows ?f/?i = d ?k / kf <1 (equation 10), where d is the film thickness. If ?k ~ 108 to 109 W/m2K and kf is from few tens to few hundreds W/Km then d should be < 100 nm, which verifies that d for our samples (70 nm) satisfies this criterion.
  20. E. G. Gamaly, A. V. Rode, and B. Luther-Davies, "Ultrafast ablation with high-pulse-rate lasers. Part I: Theoretical considerations," J. Appl. Phys. 85, 4213 (1999).
    [CrossRef]
  21. C. A. Paddock and G. L. Eesley, "Transient thermoreflectance from thin metal-films," J. Appl. Phys. 60, 285-290 (1986).
    [CrossRef]
  22. P. B. Johnson and R. W. Christy, "Optical constants of transition metals: Ti, V, Cr, Mn, Fe, Co, Ni, and Pd," Phys. Rev. B 9, 5056-5070 (1974).
    [CrossRef]
  23. M. A. Ordal, R. J. Bell, R. W. Alexander, L. L. Long, and M. R. Querry, "Optical properties of fourteen metals in the infrared and far infrared: Al, Co, Cu, Au, Fe, Pb, Mo, Ni, Pd, Pt, Ag, Ti, V, and W," Appl. Opt. 24, 4493-4499 (1985).
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  24. R. J. Stoner and H. J. Maris, "Kapitza conductance and heat-flow beween solids at temperatures from 50 to 300 K," Phys. Rev. B 48, 16373-16387 (1993).
    [CrossRef]
  25. C. Thomsen, H. T. Grahn, H. J. Maris, and J. Tauc, "Surface generation and detection of phonons by picosecond light-pulses," Phys. Rev. B 34, 4129-4138 (1986).
    [CrossRef]
  26. J. K. Miller, J. Qi, Y. Xu, Y.-J. Cho, X. Liu, J. K. Furdyna, I. Perakis, T. V. Shahbazyan, and N. Tolk, "Near-bandgap wavelength dependence of long-lived traveling coherent longitudinal acoustic phonons in GaSb-GaAs heterostructures," Phys. Rev. B 74, 113313 (2006).
    [CrossRef]
  27. D. E. Aspnes and A. A. Studna, "Dielectric functions and optical parameters of Si, Ge, GaP, GaAs, GaSb, InP, InAs, and InSb from 1.5 to 6.0 eV," Phys. Rev. B 27, 985-1009 (1983).
    [CrossRef]
  28. H. J. McSkimin, "Measurement of elastic constants at low temperatures by means of ultrasonic waves - data for silicon and germanium single crystals, and for fused silica," J. Appl. Phys. 24, 988-997 (1953).
    [CrossRef]
  29. G. Ju, A. V. Nurmikko, R. F. C. Farrow, R. F. Marks, M. J. Carey, and B. A. Gurney, "Ultrafast time resolved photoinduced magnetization rotation in a ferromagnetic/antiferromagnetic exchange coupled system," Phys. Rev. Lett. 82, 3705-3708 (1999).
    [CrossRef]
  30. M. van Kampen, C. Jozsa, J. T. Kohlhepp, P. LeClair, L. Lagae, W. J. M.de Jonge, and B. Koopmans, "All-optical probe of coherent spin waves," Phys. Rev. Lett. 88, 227201 (2002).
    [CrossRef] [PubMed]
  31. V. A. Stoica, R. Merlin, R. A. Lukaszew, and R. Clarke, "Time-resolved spin dynamics studies of ferromagnetic thin films grown by molecular beam epitaxy," presented at APS March meeting, Los Angeles, CA, USA, 21-25 March 2005.
  32. F. Schreiber, J. Pflaum, Z. Frait, Th. Muhge, and J. Pelzl, "Gilbert damping and g-factor in FexCo1-x alloy films," Solid-State Commun. 93, 965-968 (1995).
    [CrossRef]
  33. M. Farle, "Ferromagnetic resonance of ultrathin metallic layers," Rep. Prog. Phys. 61, 755-826 (1998).
    [CrossRef]
  34. S. S. Kalarickal, P. Krivosik, M. Z. Wu, C. E. Patton, M. L. Schneider, P. Kabos, T. J. Silva, J. P. Nibarger, "Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods," J. Appl. Phys. 99, 093909 (2006).
    [CrossRef]
  35. J. J. Krebs, F. J. Rachford, P. Lubitz, and G. A. Prinz, "Ferromagnetic resonance studies of very thin epitaxial single-crystals of iron," J. Appl. Phys. 53, 8058-8060 (1982).
    [CrossRef]
  36. J. R. Sandercock and W. Wettling, "Light scattering from thermal magnons in iron and nickel," IEEE Trans. Magn. 14, 442-444 (1978).
    [CrossRef]
  37. R. W. Damon and J. R. Eshbach, "Magnetostatic modes of a ferromagnetic slab," J. Phys. Chem. Solids 19, 308-320 (1961).
    [CrossRef]
  38. M. Madami, S. Tacchi, G. Carlotti, G. Gubbiotti, and R. L. Stamps, "In situ Brillouin scattering study of the thickness dependence of magnetic anisotropy in uncovered and Cu-covered Fe/GaAs(100) ultrathin films," Phys. Rev. B 69, 144408 (2004).
    [CrossRef]
  39. H. Puszkarski, "Theory of surface states in spin wave resonance," Prog. Surf. Sci. 9, 191-247 (1979).
    [CrossRef]
  40. G. S. Krinchik and V. A. Artem’ev, "Magneto-optical properties of Ni, Co and Fe in ultraviolet visible and infrared parts of spectrum," Sov. Phys. JETP 26, 1080-1085 (1968).
  41. A. Barman, S. Wang, J. Maas, A. R. Hawkins, S. Kwon, J. Bokor, A. Liddle, H. Schmidt, "Size dependent damping in picosecond dynamics of single nanomagnets," Appl. Phys. Lett. 90, 202504 (2007).
    [CrossRef]
  42. P. Grünberg, R. Schreiber, Y. Pang, M. B. Brodsky, and H. Sowers, "Layered magnetic structures: Evidence for antiferromagnetic coupling of Fe layers across Cr interlayers," Phys. Rev. Lett. 57, 2442-2445 (1986).
    [CrossRef] [PubMed]

2007 (1)

A. Barman, S. Wang, J. Maas, A. R. Hawkins, S. Kwon, J. Bokor, A. Liddle, H. Schmidt, "Size dependent damping in picosecond dynamics of single nanomagnets," Appl. Phys. Lett. 90, 202504 (2007).
[CrossRef]

2006 (5)

J. K. Miller, J. Qi, Y. Xu, Y.-J. Cho, X. Liu, J. K. Furdyna, I. Perakis, T. V. Shahbazyan, and N. Tolk, "Near-bandgap wavelength dependence of long-lived traveling coherent longitudinal acoustic phonons in GaSb-GaAs heterostructures," Phys. Rev. B 74, 113313 (2006).
[CrossRef]

S. S. Kalarickal, P. Krivosik, M. Z. Wu, C. E. Patton, M. L. Schneider, P. Kabos, T. J. Silva, J. P. Nibarger, "Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods," J. Appl. Phys. 99, 093909 (2006).
[CrossRef]

G. A. Antonelli, B. Perrin, B. C. Daly, and D. G. Cahill, "Characterization of mechanical and thermal properties using ultrafast optical metrology," MRS Bull. 31, 607-613 (2006).
[CrossRef]

R. J. Stevens, A. N. Smith, and P. M. Norris, "Signal analysis and characterization of experimental setup for the transient thermoreflectance technique," Rev. Sci. Instrum. 77, 084901 (2006).
[CrossRef]

A. F. Bartels, F. Hudert, C. Janke, T. Dekorsy, and K. Kohler, "Femtosecond time-resolved optical pump-probe spectroscopy at kilohertz-scan-rates over nanosecond-time-delays without mechanical delay line," Appl. Phys. Lett. 88, 041117 (2006).
[CrossRef]

2005 (1)

R. J. Stevens, A. N. Smith, and P. M. Norris, "Measurement of thermal boundary conductance of a series of metal-dielectric interfaces by the transient thermoreflectance technique," J. Heat Transfer 127, 315-322 (2005).
[CrossRef]

2004 (1)

M. Madami, S. Tacchi, G. Carlotti, G. Gubbiotti, and R. L. Stamps, "In situ Brillouin scattering study of the thickness dependence of magnetic anisotropy in uncovered and Cu-covered Fe/GaAs(100) ultrathin films," Phys. Rev. B 69, 144408 (2004).
[CrossRef]

2002 (1)

M. van Kampen, C. Jozsa, J. T. Kohlhepp, P. LeClair, L. Lagae, W. J. M.de Jonge, and B. Koopmans, "All-optical probe of coherent spin waves," Phys. Rev. Lett. 88, 227201 (2002).
[CrossRef] [PubMed]

1999 (2)

G. Ju, A. V. Nurmikko, R. F. C. Farrow, R. F. Marks, M. J. Carey, and B. A. Gurney, "Ultrafast time resolved photoinduced magnetization rotation in a ferromagnetic/antiferromagnetic exchange coupled system," Phys. Rev. Lett. 82, 3705-3708 (1999).
[CrossRef]

E. G. Gamaly, A. V. Rode, and B. Luther-Davies, "Ultrafast ablation with high-pulse-rate lasers. Part I: Theoretical considerations," J. Appl. Phys. 85, 4213 (1999).
[CrossRef]

1998 (1)

M. Farle, "Ferromagnetic resonance of ultrathin metallic layers," Rep. Prog. Phys. 61, 755-826 (1998).
[CrossRef]

1997 (2)

K. Postava, H. Jaffres, A. Schuhl, F. Nguyen Van Dau, M. Goiran, and A. R. Fert, "Linear and quadratic magneto-optical measurements of the spin reorientation in epitaxial Fe films on MgO," J. Magn. Magn. Mater. 172, 199-208 (1997).
[CrossRef]

R. Merlin, "Generating coherent THz phonons with light pulses," Solid-State Commun. 102, 207-220 (1997).
[CrossRef]

1996 (2)

W. S. Capinski and H. J. Maris, "Improved apparatus for Picosecond Pump-and-Probe Optical Measurements," Rev. Sci. Instrum. 67, 2720-2726 (1996).
[CrossRef]

G. A. Garrett, T. F. Albrecht, J. F. Whitaker, and R. Merlin, "Coherent THz phonons driven by light pulses and the Sb problem: What is the mechanism?," Phys. Rev. Lett. 77, 3661 (1996).
[CrossRef] [PubMed]

1995 (2)

F. Schreiber, J. Pflaum, Z. Frait, Th. Muhge, and J. Pelzl, "Gilbert damping and g-factor in FexCo1-x alloy films," Solid-State Commun. 93, 965-968 (1995).
[CrossRef]

S. Adachi, S. Takeyama, and Y. Takagi, "Dual wavelength optical sampling technique for ultrafast transient bleaching spectroscopy," Opt. Commun. 117, 71-77 (1995).
[CrossRef]

1993 (1)

R. J. Stoner and H. J. Maris, "Kapitza conductance and heat-flow beween solids at temperatures from 50 to 300 K," Phys. Rev. B 48, 16373-16387 (1993).
[CrossRef]

1991 (1)

J. Zak, E. R. Moog, C. Liu, and S. D. Bader, "Magneto-optics of multilayers with arbitrary magnetization directions," Phys. Rev. B 43, 6423 (1991).
[CrossRef]

1990 (1)

G. C. Cho, W. Kütt, and H. Kurz, "Subpicosecond time-resolved coherent-phonon oscillations in GaAs," Phys. Rev. Lett. 65, 764-766 (1990).
[CrossRef] [PubMed]

1987 (1)

1986 (3)

P. Grünberg, R. Schreiber, Y. Pang, M. B. Brodsky, and H. Sowers, "Layered magnetic structures: Evidence for antiferromagnetic coupling of Fe layers across Cr interlayers," Phys. Rev. Lett. 57, 2442-2445 (1986).
[CrossRef] [PubMed]

C. Thomsen, H. T. Grahn, H. J. Maris, and J. Tauc, "Surface generation and detection of phonons by picosecond light-pulses," Phys. Rev. B 34, 4129-4138 (1986).
[CrossRef]

C. A. Paddock and G. L. Eesley, "Transient thermoreflectance from thin metal-films," J. Appl. Phys. 60, 285-290 (1986).
[CrossRef]

1985 (1)

1983 (1)

D. E. Aspnes and A. A. Studna, "Dielectric functions and optical parameters of Si, Ge, GaP, GaAs, GaSb, InP, InAs, and InSb from 1.5 to 6.0 eV," Phys. Rev. B 27, 985-1009 (1983).
[CrossRef]

1982 (1)

J. J. Krebs, F. J. Rachford, P. Lubitz, and G. A. Prinz, "Ferromagnetic resonance studies of very thin epitaxial single-crystals of iron," J. Appl. Phys. 53, 8058-8060 (1982).
[CrossRef]

1979 (1)

H. Puszkarski, "Theory of surface states in spin wave resonance," Prog. Surf. Sci. 9, 191-247 (1979).
[CrossRef]

1978 (1)

J. R. Sandercock and W. Wettling, "Light scattering from thermal magnons in iron and nickel," IEEE Trans. Magn. 14, 442-444 (1978).
[CrossRef]

1977 (1)

E. Lill, S. Schneider, and F. Dorr, "Rapid optical sampling of relaxation-phenomena employing two time-correlated picosecond pulse trains,?Appl. Phys. 14, 399-401 (1977).
[CrossRef]

1975 (1)

J. S. Lannin, J. M. Calleja, and M. Cardona, "Second-order Raman scattering in the group-Vb semimetals: Bi, Sb, and As," Phys. Rev. B 12, 585-593 (1975).
[CrossRef]

1974 (1)

P. B. Johnson and R. W. Christy, "Optical constants of transition metals: Ti, V, Cr, Mn, Fe, Co, Ni, and Pd," Phys. Rev. B 9, 5056-5070 (1974).
[CrossRef]

1968 (1)

G. S. Krinchik and V. A. Artem’ev, "Magneto-optical properties of Ni, Co and Fe in ultraviolet visible and infrared parts of spectrum," Sov. Phys. JETP 26, 1080-1085 (1968).

1961 (1)

R. W. Damon and J. R. Eshbach, "Magnetostatic modes of a ferromagnetic slab," J. Phys. Chem. Solids 19, 308-320 (1961).
[CrossRef]

1957 (1)

M. I. Kaganov, I. M. Lifshitz, and L. V. Tanatarov, "Relaxation between electrons and the crystalline lattice," Sov. Phys. JETP 4, 173-180 (1957).

1953 (1)

H. J. McSkimin, "Measurement of elastic constants at low temperatures by means of ultrasonic waves - data for silicon and germanium single crystals, and for fused silica," J. Appl. Phys. 24, 988-997 (1953).
[CrossRef]

Adachi, S.

S. Adachi, S. Takeyama, and Y. Takagi, "Dual wavelength optical sampling technique for ultrafast transient bleaching spectroscopy," Opt. Commun. 117, 71-77 (1995).
[CrossRef]

Albrecht, T. F.

G. A. Garrett, T. F. Albrecht, J. F. Whitaker, and R. Merlin, "Coherent THz phonons driven by light pulses and the Sb problem: What is the mechanism?," Phys. Rev. Lett. 77, 3661 (1996).
[CrossRef] [PubMed]

Alexander, R. W.

Antonelli, G. A.

G. A. Antonelli, B. Perrin, B. C. Daly, and D. G. Cahill, "Characterization of mechanical and thermal properties using ultrafast optical metrology," MRS Bull. 31, 607-613 (2006).
[CrossRef]

Artem’ev, V. A.

G. S. Krinchik and V. A. Artem’ev, "Magneto-optical properties of Ni, Co and Fe in ultraviolet visible and infrared parts of spectrum," Sov. Phys. JETP 26, 1080-1085 (1968).

Aspnes, D. E.

D. E. Aspnes and A. A. Studna, "Dielectric functions and optical parameters of Si, Ge, GaP, GaAs, GaSb, InP, InAs, and InSb from 1.5 to 6.0 eV," Phys. Rev. B 27, 985-1009 (1983).
[CrossRef]

Bader, S. D.

J. Zak, E. R. Moog, C. Liu, and S. D. Bader, "Magneto-optics of multilayers with arbitrary magnetization directions," Phys. Rev. B 43, 6423 (1991).
[CrossRef]

Barman, A.

A. Barman, S. Wang, J. Maas, A. R. Hawkins, S. Kwon, J. Bokor, A. Liddle, H. Schmidt, "Size dependent damping in picosecond dynamics of single nanomagnets," Appl. Phys. Lett. 90, 202504 (2007).
[CrossRef]

Bartels, A. F.

A. F. Bartels, F. Hudert, C. Janke, T. Dekorsy, and K. Kohler, "Femtosecond time-resolved optical pump-probe spectroscopy at kilohertz-scan-rates over nanosecond-time-delays without mechanical delay line," Appl. Phys. Lett. 88, 041117 (2006).
[CrossRef]

Bell, R. J.

Bokor, J.

A. Barman, S. Wang, J. Maas, A. R. Hawkins, S. Kwon, J. Bokor, A. Liddle, H. Schmidt, "Size dependent damping in picosecond dynamics of single nanomagnets," Appl. Phys. Lett. 90, 202504 (2007).
[CrossRef]

Brodsky, M. B.

P. Grünberg, R. Schreiber, Y. Pang, M. B. Brodsky, and H. Sowers, "Layered magnetic structures: Evidence for antiferromagnetic coupling of Fe layers across Cr interlayers," Phys. Rev. Lett. 57, 2442-2445 (1986).
[CrossRef] [PubMed]

Cahill, D. G.

G. A. Antonelli, B. Perrin, B. C. Daly, and D. G. Cahill, "Characterization of mechanical and thermal properties using ultrafast optical metrology," MRS Bull. 31, 607-613 (2006).
[CrossRef]

Calleja, J. M.

J. S. Lannin, J. M. Calleja, and M. Cardona, "Second-order Raman scattering in the group-Vb semimetals: Bi, Sb, and As," Phys. Rev. B 12, 585-593 (1975).
[CrossRef]

Capinski, W. S.

W. S. Capinski and H. J. Maris, "Improved apparatus for Picosecond Pump-and-Probe Optical Measurements," Rev. Sci. Instrum. 67, 2720-2726 (1996).
[CrossRef]

Cardona, M.

J. S. Lannin, J. M. Calleja, and M. Cardona, "Second-order Raman scattering in the group-Vb semimetals: Bi, Sb, and As," Phys. Rev. B 12, 585-593 (1975).
[CrossRef]

Carey, M. J.

G. Ju, A. V. Nurmikko, R. F. C. Farrow, R. F. Marks, M. J. Carey, and B. A. Gurney, "Ultrafast time resolved photoinduced magnetization rotation in a ferromagnetic/antiferromagnetic exchange coupled system," Phys. Rev. Lett. 82, 3705-3708 (1999).
[CrossRef]

Carlotti, G.

M. Madami, S. Tacchi, G. Carlotti, G. Gubbiotti, and R. L. Stamps, "In situ Brillouin scattering study of the thickness dependence of magnetic anisotropy in uncovered and Cu-covered Fe/GaAs(100) ultrathin films," Phys. Rev. B 69, 144408 (2004).
[CrossRef]

Cho, G. C.

G. C. Cho, W. Kütt, and H. Kurz, "Subpicosecond time-resolved coherent-phonon oscillations in GaAs," Phys. Rev. Lett. 65, 764-766 (1990).
[CrossRef] [PubMed]

Cho, Y.-J.

J. K. Miller, J. Qi, Y. Xu, Y.-J. Cho, X. Liu, J. K. Furdyna, I. Perakis, T. V. Shahbazyan, and N. Tolk, "Near-bandgap wavelength dependence of long-lived traveling coherent longitudinal acoustic phonons in GaSb-GaAs heterostructures," Phys. Rev. B 74, 113313 (2006).
[CrossRef]

Christy, R. W.

P. B. Johnson and R. W. Christy, "Optical constants of transition metals: Ti, V, Cr, Mn, Fe, Co, Ni, and Pd," Phys. Rev. B 9, 5056-5070 (1974).
[CrossRef]

Daly, B. C.

G. A. Antonelli, B. Perrin, B. C. Daly, and D. G. Cahill, "Characterization of mechanical and thermal properties using ultrafast optical metrology," MRS Bull. 31, 607-613 (2006).
[CrossRef]

Damon, R. W.

R. W. Damon and J. R. Eshbach, "Magnetostatic modes of a ferromagnetic slab," J. Phys. Chem. Solids 19, 308-320 (1961).
[CrossRef]

Dekorsy, T.

A. F. Bartels, F. Hudert, C. Janke, T. Dekorsy, and K. Kohler, "Femtosecond time-resolved optical pump-probe spectroscopy at kilohertz-scan-rates over nanosecond-time-delays without mechanical delay line," Appl. Phys. Lett. 88, 041117 (2006).
[CrossRef]

Dorr, F.

E. Lill, S. Schneider, and F. Dorr, "Rapid optical sampling of relaxation-phenomena employing two time-correlated picosecond pulse trains,?Appl. Phys. 14, 399-401 (1977).
[CrossRef]

Eesley, G. L.

C. A. Paddock and G. L. Eesley, "Transient thermoreflectance from thin metal-films," J. Appl. Phys. 60, 285-290 (1986).
[CrossRef]

Elzinga, P. A.

Eshbach, J. R.

R. W. Damon and J. R. Eshbach, "Magnetostatic modes of a ferromagnetic slab," J. Phys. Chem. Solids 19, 308-320 (1961).
[CrossRef]

Farle, M.

M. Farle, "Ferromagnetic resonance of ultrathin metallic layers," Rep. Prog. Phys. 61, 755-826 (1998).
[CrossRef]

Farrow, R. F. C.

G. Ju, A. V. Nurmikko, R. F. C. Farrow, R. F. Marks, M. J. Carey, and B. A. Gurney, "Ultrafast time resolved photoinduced magnetization rotation in a ferromagnetic/antiferromagnetic exchange coupled system," Phys. Rev. Lett. 82, 3705-3708 (1999).
[CrossRef]

Fert, A. R.

K. Postava, H. Jaffres, A. Schuhl, F. Nguyen Van Dau, M. Goiran, and A. R. Fert, "Linear and quadratic magneto-optical measurements of the spin reorientation in epitaxial Fe films on MgO," J. Magn. Magn. Mater. 172, 199-208 (1997).
[CrossRef]

Frait, Z.

F. Schreiber, J. Pflaum, Z. Frait, Th. Muhge, and J. Pelzl, "Gilbert damping and g-factor in FexCo1-x alloy films," Solid-State Commun. 93, 965-968 (1995).
[CrossRef]

Furdyna, J. K.

J. K. Miller, J. Qi, Y. Xu, Y.-J. Cho, X. Liu, J. K. Furdyna, I. Perakis, T. V. Shahbazyan, and N. Tolk, "Near-bandgap wavelength dependence of long-lived traveling coherent longitudinal acoustic phonons in GaSb-GaAs heterostructures," Phys. Rev. B 74, 113313 (2006).
[CrossRef]

Gamaly, E. G.

E. G. Gamaly, A. V. Rode, and B. Luther-Davies, "Ultrafast ablation with high-pulse-rate lasers. Part I: Theoretical considerations," J. Appl. Phys. 85, 4213 (1999).
[CrossRef]

Garrett, G. A.

G. A. Garrett, T. F. Albrecht, J. F. Whitaker, and R. Merlin, "Coherent THz phonons driven by light pulses and the Sb problem: What is the mechanism?," Phys. Rev. Lett. 77, 3661 (1996).
[CrossRef] [PubMed]

Goiran, M.

K. Postava, H. Jaffres, A. Schuhl, F. Nguyen Van Dau, M. Goiran, and A. R. Fert, "Linear and quadratic magneto-optical measurements of the spin reorientation in epitaxial Fe films on MgO," J. Magn. Magn. Mater. 172, 199-208 (1997).
[CrossRef]

Grahn, H. T.

C. Thomsen, H. T. Grahn, H. J. Maris, and J. Tauc, "Surface generation and detection of phonons by picosecond light-pulses," Phys. Rev. B 34, 4129-4138 (1986).
[CrossRef]

Grünberg, P.

P. Grünberg, R. Schreiber, Y. Pang, M. B. Brodsky, and H. Sowers, "Layered magnetic structures: Evidence for antiferromagnetic coupling of Fe layers across Cr interlayers," Phys. Rev. Lett. 57, 2442-2445 (1986).
[CrossRef] [PubMed]

Gubbiotti, G.

M. Madami, S. Tacchi, G. Carlotti, G. Gubbiotti, and R. L. Stamps, "In situ Brillouin scattering study of the thickness dependence of magnetic anisotropy in uncovered and Cu-covered Fe/GaAs(100) ultrathin films," Phys. Rev. B 69, 144408 (2004).
[CrossRef]

Gurney, B. A.

G. Ju, A. V. Nurmikko, R. F. C. Farrow, R. F. Marks, M. J. Carey, and B. A. Gurney, "Ultrafast time resolved photoinduced magnetization rotation in a ferromagnetic/antiferromagnetic exchange coupled system," Phys. Rev. Lett. 82, 3705-3708 (1999).
[CrossRef]

Hawkins, A. R.

A. Barman, S. Wang, J. Maas, A. R. Hawkins, S. Kwon, J. Bokor, A. Liddle, H. Schmidt, "Size dependent damping in picosecond dynamics of single nanomagnets," Appl. Phys. Lett. 90, 202504 (2007).
[CrossRef]

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A. F. Bartels, F. Hudert, C. Janke, T. Dekorsy, and K. Kohler, "Femtosecond time-resolved optical pump-probe spectroscopy at kilohertz-scan-rates over nanosecond-time-delays without mechanical delay line," Appl. Phys. Lett. 88, 041117 (2006).
[CrossRef]

Jaffres, H.

K. Postava, H. Jaffres, A. Schuhl, F. Nguyen Van Dau, M. Goiran, and A. R. Fert, "Linear and quadratic magneto-optical measurements of the spin reorientation in epitaxial Fe films on MgO," J. Magn. Magn. Mater. 172, 199-208 (1997).
[CrossRef]

Janke, C.

A. F. Bartels, F. Hudert, C. Janke, T. Dekorsy, and K. Kohler, "Femtosecond time-resolved optical pump-probe spectroscopy at kilohertz-scan-rates over nanosecond-time-delays without mechanical delay line," Appl. Phys. Lett. 88, 041117 (2006).
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M. van Kampen, C. Jozsa, J. T. Kohlhepp, P. LeClair, L. Lagae, W. J. M.de Jonge, and B. Koopmans, "All-optical probe of coherent spin waves," Phys. Rev. Lett. 88, 227201 (2002).
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G. Ju, A. V. Nurmikko, R. F. C. Farrow, R. F. Marks, M. J. Carey, and B. A. Gurney, "Ultrafast time resolved photoinduced magnetization rotation in a ferromagnetic/antiferromagnetic exchange coupled system," Phys. Rev. Lett. 82, 3705-3708 (1999).
[CrossRef]

Kabos, P.

S. S. Kalarickal, P. Krivosik, M. Z. Wu, C. E. Patton, M. L. Schneider, P. Kabos, T. J. Silva, J. P. Nibarger, "Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods," J. Appl. Phys. 99, 093909 (2006).
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Kaganov, M. I.

M. I. Kaganov, I. M. Lifshitz, and L. V. Tanatarov, "Relaxation between electrons and the crystalline lattice," Sov. Phys. JETP 4, 173-180 (1957).

Kalarickal, S. S.

S. S. Kalarickal, P. Krivosik, M. Z. Wu, C. E. Patton, M. L. Schneider, P. Kabos, T. J. Silva, J. P. Nibarger, "Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods," J. Appl. Phys. 99, 093909 (2006).
[CrossRef]

King, G. B.

Kohler, K.

A. F. Bartels, F. Hudert, C. Janke, T. Dekorsy, and K. Kohler, "Femtosecond time-resolved optical pump-probe spectroscopy at kilohertz-scan-rates over nanosecond-time-delays without mechanical delay line," Appl. Phys. Lett. 88, 041117 (2006).
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Kohlhepp, J. T.

M. van Kampen, C. Jozsa, J. T. Kohlhepp, P. LeClair, L. Lagae, W. J. M.de Jonge, and B. Koopmans, "All-optical probe of coherent spin waves," Phys. Rev. Lett. 88, 227201 (2002).
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Krebs, J. J.

J. J. Krebs, F. J. Rachford, P. Lubitz, and G. A. Prinz, "Ferromagnetic resonance studies of very thin epitaxial single-crystals of iron," J. Appl. Phys. 53, 8058-8060 (1982).
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G. S. Krinchik and V. A. Artem’ev, "Magneto-optical properties of Ni, Co and Fe in ultraviolet visible and infrared parts of spectrum," Sov. Phys. JETP 26, 1080-1085 (1968).

Krivosik, P.

S. S. Kalarickal, P. Krivosik, M. Z. Wu, C. E. Patton, M. L. Schneider, P. Kabos, T. J. Silva, J. P. Nibarger, "Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods," J. Appl. Phys. 99, 093909 (2006).
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G. C. Cho, W. Kütt, and H. Kurz, "Subpicosecond time-resolved coherent-phonon oscillations in GaAs," Phys. Rev. Lett. 65, 764-766 (1990).
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A. Barman, S. Wang, J. Maas, A. R. Hawkins, S. Kwon, J. Bokor, A. Liddle, H. Schmidt, "Size dependent damping in picosecond dynamics of single nanomagnets," Appl. Phys. Lett. 90, 202504 (2007).
[CrossRef]

Lagae, L.

M. van Kampen, C. Jozsa, J. T. Kohlhepp, P. LeClair, L. Lagae, W. J. M.de Jonge, and B. Koopmans, "All-optical probe of coherent spin waves," Phys. Rev. Lett. 88, 227201 (2002).
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J. S. Lannin, J. M. Calleja, and M. Cardona, "Second-order Raman scattering in the group-Vb semimetals: Bi, Sb, and As," Phys. Rev. B 12, 585-593 (1975).
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Laurendeau, N. M.

LeClair, P.

M. van Kampen, C. Jozsa, J. T. Kohlhepp, P. LeClair, L. Lagae, W. J. M.de Jonge, and B. Koopmans, "All-optical probe of coherent spin waves," Phys. Rev. Lett. 88, 227201 (2002).
[CrossRef] [PubMed]

Liddle, A.

A. Barman, S. Wang, J. Maas, A. R. Hawkins, S. Kwon, J. Bokor, A. Liddle, H. Schmidt, "Size dependent damping in picosecond dynamics of single nanomagnets," Appl. Phys. Lett. 90, 202504 (2007).
[CrossRef]

Lifshitz, I. M.

M. I. Kaganov, I. M. Lifshitz, and L. V. Tanatarov, "Relaxation between electrons and the crystalline lattice," Sov. Phys. JETP 4, 173-180 (1957).

Lill, E.

E. Lill, S. Schneider, and F. Dorr, "Rapid optical sampling of relaxation-phenomena employing two time-correlated picosecond pulse trains,?Appl. Phys. 14, 399-401 (1977).
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Liu, C.

J. Zak, E. R. Moog, C. Liu, and S. D. Bader, "Magneto-optics of multilayers with arbitrary magnetization directions," Phys. Rev. B 43, 6423 (1991).
[CrossRef]

Liu, X.

J. K. Miller, J. Qi, Y. Xu, Y.-J. Cho, X. Liu, J. K. Furdyna, I. Perakis, T. V. Shahbazyan, and N. Tolk, "Near-bandgap wavelength dependence of long-lived traveling coherent longitudinal acoustic phonons in GaSb-GaAs heterostructures," Phys. Rev. B 74, 113313 (2006).
[CrossRef]

Long, L. L.

Lubitz, P.

J. J. Krebs, F. J. Rachford, P. Lubitz, and G. A. Prinz, "Ferromagnetic resonance studies of very thin epitaxial single-crystals of iron," J. Appl. Phys. 53, 8058-8060 (1982).
[CrossRef]

Luther-Davies, B.

E. G. Gamaly, A. V. Rode, and B. Luther-Davies, "Ultrafast ablation with high-pulse-rate lasers. Part I: Theoretical considerations," J. Appl. Phys. 85, 4213 (1999).
[CrossRef]

Lytle, F. E.

Maas, J.

A. Barman, S. Wang, J. Maas, A. R. Hawkins, S. Kwon, J. Bokor, A. Liddle, H. Schmidt, "Size dependent damping in picosecond dynamics of single nanomagnets," Appl. Phys. Lett. 90, 202504 (2007).
[CrossRef]

Madami, M.

M. Madami, S. Tacchi, G. Carlotti, G. Gubbiotti, and R. L. Stamps, "In situ Brillouin scattering study of the thickness dependence of magnetic anisotropy in uncovered and Cu-covered Fe/GaAs(100) ultrathin films," Phys. Rev. B 69, 144408 (2004).
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W. S. Capinski and H. J. Maris, "Improved apparatus for Picosecond Pump-and-Probe Optical Measurements," Rev. Sci. Instrum. 67, 2720-2726 (1996).
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R. J. Stoner and H. J. Maris, "Kapitza conductance and heat-flow beween solids at temperatures from 50 to 300 K," Phys. Rev. B 48, 16373-16387 (1993).
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C. Thomsen, H. T. Grahn, H. J. Maris, and J. Tauc, "Surface generation and detection of phonons by picosecond light-pulses," Phys. Rev. B 34, 4129-4138 (1986).
[CrossRef]

Marks, R. F.

G. Ju, A. V. Nurmikko, R. F. C. Farrow, R. F. Marks, M. J. Carey, and B. A. Gurney, "Ultrafast time resolved photoinduced magnetization rotation in a ferromagnetic/antiferromagnetic exchange coupled system," Phys. Rev. Lett. 82, 3705-3708 (1999).
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H. J. McSkimin, "Measurement of elastic constants at low temperatures by means of ultrasonic waves - data for silicon and germanium single crystals, and for fused silica," J. Appl. Phys. 24, 988-997 (1953).
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R. Merlin, "Generating coherent THz phonons with light pulses," Solid-State Commun. 102, 207-220 (1997).
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G. A. Garrett, T. F. Albrecht, J. F. Whitaker, and R. Merlin, "Coherent THz phonons driven by light pulses and the Sb problem: What is the mechanism?," Phys. Rev. Lett. 77, 3661 (1996).
[CrossRef] [PubMed]

Miller, J. K.

J. K. Miller, J. Qi, Y. Xu, Y.-J. Cho, X. Liu, J. K. Furdyna, I. Perakis, T. V. Shahbazyan, and N. Tolk, "Near-bandgap wavelength dependence of long-lived traveling coherent longitudinal acoustic phonons in GaSb-GaAs heterostructures," Phys. Rev. B 74, 113313 (2006).
[CrossRef]

Moog, E. R.

J. Zak, E. R. Moog, C. Liu, and S. D. Bader, "Magneto-optics of multilayers with arbitrary magnetization directions," Phys. Rev. B 43, 6423 (1991).
[CrossRef]

Muhge, Th.

F. Schreiber, J. Pflaum, Z. Frait, Th. Muhge, and J. Pelzl, "Gilbert damping and g-factor in FexCo1-x alloy films," Solid-State Commun. 93, 965-968 (1995).
[CrossRef]

Nguyen Van Dau, F.

K. Postava, H. Jaffres, A. Schuhl, F. Nguyen Van Dau, M. Goiran, and A. R. Fert, "Linear and quadratic magneto-optical measurements of the spin reorientation in epitaxial Fe films on MgO," J. Magn. Magn. Mater. 172, 199-208 (1997).
[CrossRef]

Nibarger, J. P.

S. S. Kalarickal, P. Krivosik, M. Z. Wu, C. E. Patton, M. L. Schneider, P. Kabos, T. J. Silva, J. P. Nibarger, "Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods," J. Appl. Phys. 99, 093909 (2006).
[CrossRef]

Norris, P. M.

R. J. Stevens, A. N. Smith, and P. M. Norris, "Signal analysis and characterization of experimental setup for the transient thermoreflectance technique," Rev. Sci. Instrum. 77, 084901 (2006).
[CrossRef]

R. J. Stevens, A. N. Smith, and P. M. Norris, "Measurement of thermal boundary conductance of a series of metal-dielectric interfaces by the transient thermoreflectance technique," J. Heat Transfer 127, 315-322 (2005).
[CrossRef]

Nurmikko, A. V.

G. Ju, A. V. Nurmikko, R. F. C. Farrow, R. F. Marks, M. J. Carey, and B. A. Gurney, "Ultrafast time resolved photoinduced magnetization rotation in a ferromagnetic/antiferromagnetic exchange coupled system," Phys. Rev. Lett. 82, 3705-3708 (1999).
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Ordal, M. A.

Paddock, C. A.

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Pang, Y.

P. Grünberg, R. Schreiber, Y. Pang, M. B. Brodsky, and H. Sowers, "Layered magnetic structures: Evidence for antiferromagnetic coupling of Fe layers across Cr interlayers," Phys. Rev. Lett. 57, 2442-2445 (1986).
[CrossRef] [PubMed]

Patton, C. E.

S. S. Kalarickal, P. Krivosik, M. Z. Wu, C. E. Patton, M. L. Schneider, P. Kabos, T. J. Silva, J. P. Nibarger, "Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods," J. Appl. Phys. 99, 093909 (2006).
[CrossRef]

Pelzl, J.

F. Schreiber, J. Pflaum, Z. Frait, Th. Muhge, and J. Pelzl, "Gilbert damping and g-factor in FexCo1-x alloy films," Solid-State Commun. 93, 965-968 (1995).
[CrossRef]

Perakis, I.

J. K. Miller, J. Qi, Y. Xu, Y.-J. Cho, X. Liu, J. K. Furdyna, I. Perakis, T. V. Shahbazyan, and N. Tolk, "Near-bandgap wavelength dependence of long-lived traveling coherent longitudinal acoustic phonons in GaSb-GaAs heterostructures," Phys. Rev. B 74, 113313 (2006).
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G. A. Antonelli, B. Perrin, B. C. Daly, and D. G. Cahill, "Characterization of mechanical and thermal properties using ultrafast optical metrology," MRS Bull. 31, 607-613 (2006).
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Pflaum, J.

F. Schreiber, J. Pflaum, Z. Frait, Th. Muhge, and J. Pelzl, "Gilbert damping and g-factor in FexCo1-x alloy films," Solid-State Commun. 93, 965-968 (1995).
[CrossRef]

Postava, K.

K. Postava, H. Jaffres, A. Schuhl, F. Nguyen Van Dau, M. Goiran, and A. R. Fert, "Linear and quadratic magneto-optical measurements of the spin reorientation in epitaxial Fe films on MgO," J. Magn. Magn. Mater. 172, 199-208 (1997).
[CrossRef]

Prinz, G. A.

J. J. Krebs, F. J. Rachford, P. Lubitz, and G. A. Prinz, "Ferromagnetic resonance studies of very thin epitaxial single-crystals of iron," J. Appl. Phys. 53, 8058-8060 (1982).
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H. Puszkarski, "Theory of surface states in spin wave resonance," Prog. Surf. Sci. 9, 191-247 (1979).
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J. K. Miller, J. Qi, Y. Xu, Y.-J. Cho, X. Liu, J. K. Furdyna, I. Perakis, T. V. Shahbazyan, and N. Tolk, "Near-bandgap wavelength dependence of long-lived traveling coherent longitudinal acoustic phonons in GaSb-GaAs heterostructures," Phys. Rev. B 74, 113313 (2006).
[CrossRef]

Querry, M. R.

Rachford, F. J.

J. J. Krebs, F. J. Rachford, P. Lubitz, and G. A. Prinz, "Ferromagnetic resonance studies of very thin epitaxial single-crystals of iron," J. Appl. Phys. 53, 8058-8060 (1982).
[CrossRef]

Rode, A. V.

E. G. Gamaly, A. V. Rode, and B. Luther-Davies, "Ultrafast ablation with high-pulse-rate lasers. Part I: Theoretical considerations," J. Appl. Phys. 85, 4213 (1999).
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J. R. Sandercock and W. Wettling, "Light scattering from thermal magnons in iron and nickel," IEEE Trans. Magn. 14, 442-444 (1978).
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Schmidt, H.

A. Barman, S. Wang, J. Maas, A. R. Hawkins, S. Kwon, J. Bokor, A. Liddle, H. Schmidt, "Size dependent damping in picosecond dynamics of single nanomagnets," Appl. Phys. Lett. 90, 202504 (2007).
[CrossRef]

Schneider, M. L.

S. S. Kalarickal, P. Krivosik, M. Z. Wu, C. E. Patton, M. L. Schneider, P. Kabos, T. J. Silva, J. P. Nibarger, "Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods," J. Appl. Phys. 99, 093909 (2006).
[CrossRef]

Schneider, S.

E. Lill, S. Schneider, and F. Dorr, "Rapid optical sampling of relaxation-phenomena employing two time-correlated picosecond pulse trains,?Appl. Phys. 14, 399-401 (1977).
[CrossRef]

Schreiber, F.

F. Schreiber, J. Pflaum, Z. Frait, Th. Muhge, and J. Pelzl, "Gilbert damping and g-factor in FexCo1-x alloy films," Solid-State Commun. 93, 965-968 (1995).
[CrossRef]

Schreiber, R.

P. Grünberg, R. Schreiber, Y. Pang, M. B. Brodsky, and H. Sowers, "Layered magnetic structures: Evidence for antiferromagnetic coupling of Fe layers across Cr interlayers," Phys. Rev. Lett. 57, 2442-2445 (1986).
[CrossRef] [PubMed]

Schuhl, A.

K. Postava, H. Jaffres, A. Schuhl, F. Nguyen Van Dau, M. Goiran, and A. R. Fert, "Linear and quadratic magneto-optical measurements of the spin reorientation in epitaxial Fe films on MgO," J. Magn. Magn. Mater. 172, 199-208 (1997).
[CrossRef]

Shahbazyan, T. V.

J. K. Miller, J. Qi, Y. Xu, Y.-J. Cho, X. Liu, J. K. Furdyna, I. Perakis, T. V. Shahbazyan, and N. Tolk, "Near-bandgap wavelength dependence of long-lived traveling coherent longitudinal acoustic phonons in GaSb-GaAs heterostructures," Phys. Rev. B 74, 113313 (2006).
[CrossRef]

Silva, T. J.

S. S. Kalarickal, P. Krivosik, M. Z. Wu, C. E. Patton, M. L. Schneider, P. Kabos, T. J. Silva, J. P. Nibarger, "Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods," J. Appl. Phys. 99, 093909 (2006).
[CrossRef]

Smith, A. N.

R. J. Stevens, A. N. Smith, and P. M. Norris, "Signal analysis and characterization of experimental setup for the transient thermoreflectance technique," Rev. Sci. Instrum. 77, 084901 (2006).
[CrossRef]

R. J. Stevens, A. N. Smith, and P. M. Norris, "Measurement of thermal boundary conductance of a series of metal-dielectric interfaces by the transient thermoreflectance technique," J. Heat Transfer 127, 315-322 (2005).
[CrossRef]

Sowers, H.

P. Grünberg, R. Schreiber, Y. Pang, M. B. Brodsky, and H. Sowers, "Layered magnetic structures: Evidence for antiferromagnetic coupling of Fe layers across Cr interlayers," Phys. Rev. Lett. 57, 2442-2445 (1986).
[CrossRef] [PubMed]

Stamps, R. L.

M. Madami, S. Tacchi, G. Carlotti, G. Gubbiotti, and R. L. Stamps, "In situ Brillouin scattering study of the thickness dependence of magnetic anisotropy in uncovered and Cu-covered Fe/GaAs(100) ultrathin films," Phys. Rev. B 69, 144408 (2004).
[CrossRef]

Stevens, R. J.

R. J. Stevens, A. N. Smith, and P. M. Norris, "Signal analysis and characterization of experimental setup for the transient thermoreflectance technique," Rev. Sci. Instrum. 77, 084901 (2006).
[CrossRef]

R. J. Stevens, A. N. Smith, and P. M. Norris, "Measurement of thermal boundary conductance of a series of metal-dielectric interfaces by the transient thermoreflectance technique," J. Heat Transfer 127, 315-322 (2005).
[CrossRef]

Stoner, R. J.

R. J. Stoner and H. J. Maris, "Kapitza conductance and heat-flow beween solids at temperatures from 50 to 300 K," Phys. Rev. B 48, 16373-16387 (1993).
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M. Madami, S. Tacchi, G. Carlotti, G. Gubbiotti, and R. L. Stamps, "In situ Brillouin scattering study of the thickness dependence of magnetic anisotropy in uncovered and Cu-covered Fe/GaAs(100) ultrathin films," Phys. Rev. B 69, 144408 (2004).
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S. Adachi, S. Takeyama, and Y. Takagi, "Dual wavelength optical sampling technique for ultrafast transient bleaching spectroscopy," Opt. Commun. 117, 71-77 (1995).
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Tanatarov, L. V.

M. I. Kaganov, I. M. Lifshitz, and L. V. Tanatarov, "Relaxation between electrons and the crystalline lattice," Sov. Phys. JETP 4, 173-180 (1957).

Tauc, J.

C. Thomsen, H. T. Grahn, H. J. Maris, and J. Tauc, "Surface generation and detection of phonons by picosecond light-pulses," Phys. Rev. B 34, 4129-4138 (1986).
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Other (5)

The heat diffusion model (equations 2-7 from [15]) can be applied if the time constant of heat diffusion in film (?f) and interface time constant (?i) follows ?f/?i = d ?k / kf <1 (equation 10), where d is the film thickness. If ?k ~ 108 to 109 W/m2K and kf is from few tens to few hundreds W/Km then d should be < 100 nm, which verifies that d for our samples (70 nm) satisfies this criterion.

http://www.menlosystems.com

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[CrossRef]

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Figures (6)

Fig. 1.
Fig. 1.

Schematic of the experimental setup with collinear pump-probe geometry: RRE - repetition-rate synchronization electronics; BS - beam splitter; DM - dichroic mirror; PM - parabolic mirror; CF - color filter; D, D1, D2 - detectors; SFG – sum-frequency generation.

Fig. 2.
Fig. 2.

Coherent optical phonon reflectivity oscillations detected in an Sb thin film grown on (111) Si substrate. Pump (1560 nm) and probe (789 nm) beams are both s-polarized and collinear. FFT in the inset corresponds to the oscillatory part of the signal after subtraction of slowly varying background.

Fig. 3.
Fig. 3.

Scheme used for component-resolved MOKE separation described in the text. Vertical (s-polarized) and horizontal (p-polarized) lines represent the incident probe polarization on the sample. Sample-induced MOKE polarization rotation, for longitudinal and polar magnetization components, is sketched using displacement of arrows. Dashed lines at 45° represent the orientation axis of the analyzer placed in the probe beam after reflection on the sample.

Fig. 4.
Fig. 4.

Thermoreflectance experimental data (fit curves) are plotted as dots (lines). The curves are rescaled and displaced for clarity.

Fig. 5.
Fig. 5.

Experimental transient reflectivity in the upper curve (two lower curves) is measured using 780 nm (1560 nm) pump beam wavelength. The curves are rescaled and displaced for clarity. FFT in the inset corresponds to the oscillatory part of the signal of experimental curves for Au/Fe/Ge (100) and Au/Fe/Ge (110).

Fig. 6.
Fig. 6.

Coherent magnetization oscillation measurement for (110) Fe/Ge sample. Oscillatory trace detected at 780 nm probe wavelength, and H≈1000 Oe, is shown in (a), the lower dotted (red line) curve is the experiment (fit) after background subtraction; (b) equivalent magnetic field linewidth values are plotted as dots (see text) and the line is a fit; (c) shows a comparison of the experimental results obtained at 780 nm and 520 nm probe wavelengths, and H≈100 Oe, in the upper and lower curves, respectively. ΔI/I is the fractional transmission through analyzer in a) and c).

Equations (4)

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( 2 π f γ ) 2 = [ H cos ( θ M θ H ) + H k 1 ] [ H cos ( θ M θ H ) + H k 2 + 4 π M e f f ]
Δ f = γ 2 π Δ H 1 + ( γ M f ) 2
Δ H = Δ H i + 2 3 2 π f γ α
Δ f = 1 π τ .

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