Abstract

(100−x)La2O3-xNb2O5 glasses with high refractive indices (>2.1) and low wavelength dispersion were prepared by containerless processing. All the glasses were colorless and transparent in the visible region. The glass forming region was divided into two regions: a high-La2O3-content (39 ≤ x ≤ 42) region and a high-Nb2O5-content (60 ≤ x ≤ 75) region. The dependence of the physical properties on the composition for these two types of glasses was different, implying that the high-La2O3-content glasses (La glasses) and high-Nb2O5-content glasses (Nb glasses) were intrinsically different. A large difference in the molar volumes of the two types of glasses indicated that the Nb glasses were more densely packed than the La glasses. Furthermore, the oxygen polarizabilities estimated from the molar volumes and refractive indices were greater than 2.43 Å3 for the La glasses, while those for the Nb glasses decreased from 2.43 Å3 with decreasing x. The large oxygen polarizabilities, as compared to those of conventional optical glasses, indicate a particularly high degree of ionic character for the component elements in the glasses. These results suggest that both the La and Nb glasses are desirable materials for high-valued optics, such as lenses with high power and high resolution as well as wide viewing angles used for a digital camera in a smartphone.

© 2014 Optical Society of America

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  25. N. Kitamura, K. Fukumi, J. Nakamura, T. Hidaka, H. Hashima, Y. Mayumi, and J. Nishii, “Optical properties of zinc bismuth phosphate glass,” Mater. Sci. Eng. B161(1-3), 91–95 (2009).
    [CrossRef]
  26. S. Fujino, H. Takebe, and K. Morinaga, “Measurements of Refractive Indexes and Factors Affecting Dispersion in Oxide Glasses,” J. Am. Ceram. Soc.78(5), 1179–1184 (1995).
    [CrossRef]
  27. S. Hirota and T. Izumitani, “Effect of cations on the inherent absorption wavelength and the oscillator strength of ultraviolet absorptions in borate glasses,” J. Non-Cryst. Solids29(1), 109–117 (1978).
    [CrossRef]
  28. V. Dimitrov and T. Komatsu, “Electronic polarizability, optical basicity and non-linear optical properties of oxide glasses,” J. Non-Cryst. Solids249(2-3), 160–179 (1999).
    [CrossRef]
  29. V. Dimitrov and T. Komatsu, “Interionic interactions, electronic polarizability and optical basicity of oxide glasses,” J. Ceram. Soc. Jpn.108(1256), 330–338 (2000).
    [CrossRef]
  30. V. Dimitrov and T. Komatsu, “Classification of oxide glasses: A polarizability approach,” J. Solid State Chem.178(3), 831–846 (2005).
    [CrossRef]
  31. V. Dimitrov and S. Sakka, “Electronic oxide polarizability and optical basicity of simple oxides. I,” J. Appl. Phys.79(3), 1736–1740 (1996).
    [CrossRef]
  32. T. Honma, Y. Benino, T. Fujiwara, T. Komatsu, R. Sato, and V. Dimitrov, “Electronic polarizability, optical basicity, and interaction parameter of La2O3 and related glasses,” J. Appl. Phys.91(5), 2942–2950 (2002).
    [CrossRef]

2013 (2)

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

A. Masuno, S. Kohara, A. C. Hannon, E. Bychkov, and H. Inoue, “Drastic connectivity change in high refractive index lanthanum niobate glasses,” Chem. Mater.25(15), 3056–3061 (2013).
[CrossRef]

2012 (3)

K. Yoshimoto, A. Masuno, H. Inoue, and Y. Watanabe, “Transparent and high refractive index La2O3–WO3 glass prepared using containerless processing,” J. Am. Ceram. Soc.95(11), 3501–3504 (2012).
[CrossRef]

Y. Watanabe, A. Masuno, and H. Inoue, “Glass formation of rare earth aluminates by containerless processing,” J. Non-Cryst. Solids358(24), 3563–3566 (2012).
[CrossRef]

A. Masuno, Y. Watanabe, H. Inoue, Y. Arai, J. Yu, and M. Kaneko, “Glass-forming region and high refractive index of TiO2-based glasses prepared by containerless processing,” Phys. Status Solidi C9(12), 2424–2427 (2012).
[CrossRef]

2011 (2)

H. Inoue, Y. Watanabe, A. Masuno, J. Yu, and M. Kaneko, “Effect of substituting Al2O3 and ZrO2 on thermal and optical properties of high refractive index La2O3–TiO2 glass system prepared by containerless processing,” Opt. Mater.33(12), 1853–1857 (2011).
[CrossRef]

S. Kohara, J. Akola, H. Morita, K. Suzuya, J. K. R. Weber, M. C. Wilding, and C. J. Benmore, “Relationship between topological order and glass forming ability in densely packed enstatite and forsterite composition glasses,” Proc. Natl. Acad. Sci. U.S.A.108(36), 14780–14785 (2011).
[CrossRef] [PubMed]

2010 (2)

A. Masuno and H. Inoue, “High refractive index of 0.30La2O3– 0.70Nb2O5 glass prepared by containerless processing,” Appl. Phys. Express3(10), 102601 (2010).
[CrossRef]

A. Masuno, H. Inoue, J. Yu, and Y. Arai, “Refractive index dispersion, optical transmittance, and Raman scattering of BaTi2O5 glass,” J. Appl. Phys.108(6), 063520 (2010).
[CrossRef]

2009 (3)

A. C. Barnes, L. B. Skinner, P. S. Salmon, A. Bytchkov, I. Pozdnyakova, T. O. Farmer, and H. E. Fischer, “Liquid-liquid phase transition in supercooled yttria-alumina,” Phys. Rev. Lett.103(22), 225702 (2009).
[CrossRef] [PubMed]

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

N. Kitamura, K. Fukumi, J. Nakamura, T. Hidaka, H. Hashima, Y. Mayumi, and J. Nishii, “Optical properties of zinc bismuth phosphate glass,” Mater. Sci. Eng. B161(1-3), 91–95 (2009).
[CrossRef]

2008 (2)

F. Vullum, F. Nitsche, S. M. Selbach, and T. Grande, “Solid solubility and phase transitions in the system LaNb1−xTaxO4,” J. Solid State Chem.181(10), 2580–2585 (2008).
[CrossRef]

Y. Arai, K. Itoh, S. Kohara, and J. Yu, “Refractive index calculation using the structural properties of La4Ti9O24 glass,” J. Appl. Phys.103(9), 094905 (2008).
[CrossRef]

2006 (2)

J. Yu, Y. Arai, T. Masaki, T. Ishikawa, S. Yoda, S. Kohara, H. Taniguchi, M. Itoh, and Y. Kuroiwa, “Fabrication of BaTi2O5 glass-ceramics with unusual dielectric properties during crystallization,” Chem. Mater.18(8), 2169–2173 (2006).
[CrossRef]

L. B. Skinner, A. C. Barnes, and W. Crichton, “Novel behaviour and structure of new glasses of the type Ba-Al-O and Ba-Al-Ti-O produced by aerodynamic levitation and laser heating,” J. Phys. Condens. Matter18(32), L407–L414 (2006).
[CrossRef] [PubMed]

2005 (1)

V. Dimitrov and T. Komatsu, “Classification of oxide glasses: A polarizability approach,” J. Solid State Chem.178(3), 831–846 (2005).
[CrossRef]

2004 (1)

S. Kohara, K. Suzuya, K. Takeuchi, C.-K. Loong, M. Grimsditch, J. K. R. Weber, J. A. Tangeman, and T. S. Key, “Glass formation at the limit of insufficient network formers,” Science303(5664), 1649–1652 (2004).
[CrossRef] [PubMed]

2002 (2)

M. C. Wilding, C. J. Benmore, and P. F. Mcmillan, “A neutron diffraction study of yttrium- and lanthanum-aluminate glasses,” J. Non-Cryst. Solids297(2-3), 143–155 (2002).
[CrossRef]

T. Honma, Y. Benino, T. Fujiwara, T. Komatsu, R. Sato, and V. Dimitrov, “Electronic polarizability, optical basicity, and interaction parameter of La2O3 and related glasses,” J. Appl. Phys.91(5), 2942–2950 (2002).
[CrossRef]

2000 (2)

V. Dimitrov and T. Komatsu, “Interionic interactions, electronic polarizability and optical basicity of oxide glasses,” J. Ceram. Soc. Jpn.108(1256), 330–338 (2000).
[CrossRef]

J. K. R. Weber, J. G. Abadie, A. D. Hixson, P. C. Nordine, and G. A. Jerman, “Glass formation and polyamorphism in rare-earth oxide–aluminum oxide compositions,” J. Am. Ceram. Soc.83(8), 1868–1872 (2000).
[CrossRef]

1999 (1)

V. Dimitrov and T. Komatsu, “Electronic polarizability, optical basicity and non-linear optical properties of oxide glasses,” J. Non-Cryst. Solids249(2-3), 160–179 (1999).
[CrossRef]

1996 (1)

V. Dimitrov and S. Sakka, “Electronic oxide polarizability and optical basicity of simple oxides. I,” J. Appl. Phys.79(3), 1736–1740 (1996).
[CrossRef]

1995 (1)

S. Fujino, H. Takebe, and K. Morinaga, “Measurements of Refractive Indexes and Factors Affecting Dispersion in Oxide Glasses,” J. Am. Ceram. Soc.78(5), 1179–1184 (1995).
[CrossRef]

1992 (1)

W. H. Dumbaugh and J. Lapp, “Heavy-metal oxide glasses,” J. Am. Ceram. Soc.75(9), 2315–2326 (1992).
[CrossRef]

1986 (1)

H. Kozuka, R. Ota, and N. Soga, “Preparation and properties of binary oxide glasses containing rare earth oxides,” J. Soc. Mater. Sci. Jpn.35(388), 73–79 (1986).
[CrossRef]

1978 (1)

S. Hirota and T. Izumitani, “Effect of cations on the inherent absorption wavelength and the oscillator strength of ultraviolet absorptions in borate glasses,” J. Non-Cryst. Solids29(1), 109–117 (1978).
[CrossRef]

1947 (1)

K.-H. Sun, “Fundamental condition of glass formation,” J. Am. Ceram. Soc.30(9), 277–281 (1947).
[CrossRef]

1932 (1)

W. Zachariasen, “The atomic arrangement in glass,” J. Am. Chem. Soc.54(10), 3841–3851 (1932).
[CrossRef]

Abadie, J. G.

J. K. R. Weber, J. G. Abadie, A. D. Hixson, P. C. Nordine, and G. A. Jerman, “Glass formation and polyamorphism in rare-earth oxide–aluminum oxide compositions,” J. Am. Ceram. Soc.83(8), 1868–1872 (2000).
[CrossRef]

Akola, J.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

S. Kohara, J. Akola, H. Morita, K. Suzuya, J. K. R. Weber, M. C. Wilding, and C. J. Benmore, “Relationship between topological order and glass forming ability in densely packed enstatite and forsterite composition glasses,” Proc. Natl. Acad. Sci. U.S.A.108(36), 14780–14785 (2011).
[CrossRef] [PubMed]

Arai, Y.

A. Masuno, Y. Watanabe, H. Inoue, Y. Arai, J. Yu, and M. Kaneko, “Glass-forming region and high refractive index of TiO2-based glasses prepared by containerless processing,” Phys. Status Solidi C9(12), 2424–2427 (2012).
[CrossRef]

A. Masuno, H. Inoue, J. Yu, and Y. Arai, “Refractive index dispersion, optical transmittance, and Raman scattering of BaTi2O5 glass,” J. Appl. Phys.108(6), 063520 (2010).
[CrossRef]

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

Y. Arai, K. Itoh, S. Kohara, and J. Yu, “Refractive index calculation using the structural properties of La4Ti9O24 glass,” J. Appl. Phys.103(9), 094905 (2008).
[CrossRef]

J. Yu, Y. Arai, T. Masaki, T. Ishikawa, S. Yoda, S. Kohara, H. Taniguchi, M. Itoh, and Y. Kuroiwa, “Fabrication of BaTi2O5 glass-ceramics with unusual dielectric properties during crystallization,” Chem. Mater.18(8), 2169–2173 (2006).
[CrossRef]

Barnes, A. C.

A. C. Barnes, L. B. Skinner, P. S. Salmon, A. Bytchkov, I. Pozdnyakova, T. O. Farmer, and H. E. Fischer, “Liquid-liquid phase transition in supercooled yttria-alumina,” Phys. Rev. Lett.103(22), 225702 (2009).
[CrossRef] [PubMed]

L. B. Skinner, A. C. Barnes, and W. Crichton, “Novel behaviour and structure of new glasses of the type Ba-Al-O and Ba-Al-Ti-O produced by aerodynamic levitation and laser heating,” J. Phys. Condens. Matter18(32), L407–L414 (2006).
[CrossRef] [PubMed]

Benino, Y.

T. Honma, Y. Benino, T. Fujiwara, T. Komatsu, R. Sato, and V. Dimitrov, “Electronic polarizability, optical basicity, and interaction parameter of La2O3 and related glasses,” J. Appl. Phys.91(5), 2942–2950 (2002).
[CrossRef]

Benmore, C. J.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

S. Kohara, J. Akola, H. Morita, K. Suzuya, J. K. R. Weber, M. C. Wilding, and C. J. Benmore, “Relationship between topological order and glass forming ability in densely packed enstatite and forsterite composition glasses,” Proc. Natl. Acad. Sci. U.S.A.108(36), 14780–14785 (2011).
[CrossRef] [PubMed]

M. C. Wilding, C. J. Benmore, and P. F. Mcmillan, “A neutron diffraction study of yttrium- and lanthanum-aluminate glasses,” J. Non-Cryst. Solids297(2-3), 143–155 (2002).
[CrossRef]

Bychkov, E.

A. Masuno, S. Kohara, A. C. Hannon, E. Bychkov, and H. Inoue, “Drastic connectivity change in high refractive index lanthanum niobate glasses,” Chem. Mater.25(15), 3056–3061 (2013).
[CrossRef]

Bytchkov, A.

A. C. Barnes, L. B. Skinner, P. S. Salmon, A. Bytchkov, I. Pozdnyakova, T. O. Farmer, and H. E. Fischer, “Liquid-liquid phase transition in supercooled yttria-alumina,” Phys. Rev. Lett.103(22), 225702 (2009).
[CrossRef] [PubMed]

Crichton, W.

L. B. Skinner, A. C. Barnes, and W. Crichton, “Novel behaviour and structure of new glasses of the type Ba-Al-O and Ba-Al-Ti-O produced by aerodynamic levitation and laser heating,” J. Phys. Condens. Matter18(32), L407–L414 (2006).
[CrossRef] [PubMed]

Dimitrov, V.

V. Dimitrov and T. Komatsu, “Classification of oxide glasses: A polarizability approach,” J. Solid State Chem.178(3), 831–846 (2005).
[CrossRef]

T. Honma, Y. Benino, T. Fujiwara, T. Komatsu, R. Sato, and V. Dimitrov, “Electronic polarizability, optical basicity, and interaction parameter of La2O3 and related glasses,” J. Appl. Phys.91(5), 2942–2950 (2002).
[CrossRef]

V. Dimitrov and T. Komatsu, “Interionic interactions, electronic polarizability and optical basicity of oxide glasses,” J. Ceram. Soc. Jpn.108(1256), 330–338 (2000).
[CrossRef]

V. Dimitrov and T. Komatsu, “Electronic polarizability, optical basicity and non-linear optical properties of oxide glasses,” J. Non-Cryst. Solids249(2-3), 160–179 (1999).
[CrossRef]

V. Dimitrov and S. Sakka, “Electronic oxide polarizability and optical basicity of simple oxides. I,” J. Appl. Phys.79(3), 1736–1740 (1996).
[CrossRef]

Dumbaugh, W. H.

W. H. Dumbaugh and J. Lapp, “Heavy-metal oxide glasses,” J. Am. Ceram. Soc.75(9), 2315–2326 (1992).
[CrossRef]

Farmer, T. O.

A. C. Barnes, L. B. Skinner, P. S. Salmon, A. Bytchkov, I. Pozdnyakova, T. O. Farmer, and H. E. Fischer, “Liquid-liquid phase transition in supercooled yttria-alumina,” Phys. Rev. Lett.103(22), 225702 (2009).
[CrossRef] [PubMed]

Fischer, H. E.

A. C. Barnes, L. B. Skinner, P. S. Salmon, A. Bytchkov, I. Pozdnyakova, T. O. Farmer, and H. E. Fischer, “Liquid-liquid phase transition in supercooled yttria-alumina,” Phys. Rev. Lett.103(22), 225702 (2009).
[CrossRef] [PubMed]

Fujino, S.

S. Fujino, H. Takebe, and K. Morinaga, “Measurements of Refractive Indexes and Factors Affecting Dispersion in Oxide Glasses,” J. Am. Ceram. Soc.78(5), 1179–1184 (1995).
[CrossRef]

Fujiwara, A.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

Fujiwara, T.

T. Honma, Y. Benino, T. Fujiwara, T. Komatsu, R. Sato, and V. Dimitrov, “Electronic polarizability, optical basicity, and interaction parameter of La2O3 and related glasses,” J. Appl. Phys.91(5), 2942–2950 (2002).
[CrossRef]

Fukumi, K.

N. Kitamura, K. Fukumi, J. Nakamura, T. Hidaka, H. Hashima, Y. Mayumi, and J. Nishii, “Optical properties of zinc bismuth phosphate glass,” Mater. Sci. Eng. B161(1-3), 91–95 (2009).
[CrossRef]

Fukunaga, T.

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

Grande, T.

F. Vullum, F. Nitsche, S. M. Selbach, and T. Grande, “Solid solubility and phase transitions in the system LaNb1−xTaxO4,” J. Solid State Chem.181(10), 2580–2585 (2008).
[CrossRef]

Grimsditch, M.

S. Kohara, K. Suzuya, K. Takeuchi, C.-K. Loong, M. Grimsditch, J. K. R. Weber, J. A. Tangeman, and T. S. Key, “Glass formation at the limit of insufficient network formers,” Science303(5664), 1649–1652 (2004).
[CrossRef] [PubMed]

Hannon, A. C.

A. Masuno, S. Kohara, A. C. Hannon, E. Bychkov, and H. Inoue, “Drastic connectivity change in high refractive index lanthanum niobate glasses,” Chem. Mater.25(15), 3056–3061 (2013).
[CrossRef]

Hashima, H.

N. Kitamura, K. Fukumi, J. Nakamura, T. Hidaka, H. Hashima, Y. Mayumi, and J. Nishii, “Optical properties of zinc bismuth phosphate glass,” Mater. Sci. Eng. B161(1-3), 91–95 (2009).
[CrossRef]

Hidaka, T.

N. Kitamura, K. Fukumi, J. Nakamura, T. Hidaka, H. Hashima, Y. Mayumi, and J. Nishii, “Optical properties of zinc bismuth phosphate glass,” Mater. Sci. Eng. B161(1-3), 91–95 (2009).
[CrossRef]

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S. Hirota and T. Izumitani, “Effect of cations on the inherent absorption wavelength and the oscillator strength of ultraviolet absorptions in borate glasses,” J. Non-Cryst. Solids29(1), 109–117 (1978).
[CrossRef]

Hixson, A. D.

J. K. R. Weber, J. G. Abadie, A. D. Hixson, P. C. Nordine, and G. A. Jerman, “Glass formation and polyamorphism in rare-earth oxide–aluminum oxide compositions,” J. Am. Ceram. Soc.83(8), 1868–1872 (2000).
[CrossRef]

Honma, T.

T. Honma, Y. Benino, T. Fujiwara, T. Komatsu, R. Sato, and V. Dimitrov, “Electronic polarizability, optical basicity, and interaction parameter of La2O3 and related glasses,” J. Appl. Phys.91(5), 2942–2950 (2002).
[CrossRef]

Inoue, H.

A. Masuno, S. Kohara, A. C. Hannon, E. Bychkov, and H. Inoue, “Drastic connectivity change in high refractive index lanthanum niobate glasses,” Chem. Mater.25(15), 3056–3061 (2013).
[CrossRef]

A. Masuno, Y. Watanabe, H. Inoue, Y. Arai, J. Yu, and M. Kaneko, “Glass-forming region and high refractive index of TiO2-based glasses prepared by containerless processing,” Phys. Status Solidi C9(12), 2424–2427 (2012).
[CrossRef]

Y. Watanabe, A. Masuno, and H. Inoue, “Glass formation of rare earth aluminates by containerless processing,” J. Non-Cryst. Solids358(24), 3563–3566 (2012).
[CrossRef]

K. Yoshimoto, A. Masuno, H. Inoue, and Y. Watanabe, “Transparent and high refractive index La2O3–WO3 glass prepared using containerless processing,” J. Am. Ceram. Soc.95(11), 3501–3504 (2012).
[CrossRef]

H. Inoue, Y. Watanabe, A. Masuno, J. Yu, and M. Kaneko, “Effect of substituting Al2O3 and ZrO2 on thermal and optical properties of high refractive index La2O3–TiO2 glass system prepared by containerless processing,” Opt. Mater.33(12), 1853–1857 (2011).
[CrossRef]

A. Masuno, H. Inoue, J. Yu, and Y. Arai, “Refractive index dispersion, optical transmittance, and Raman scattering of BaTi2O5 glass,” J. Appl. Phys.108(6), 063520 (2010).
[CrossRef]

A. Masuno and H. Inoue, “High refractive index of 0.30La2O3– 0.70Nb2O5 glass prepared by containerless processing,” Appl. Phys. Express3(10), 102601 (2010).
[CrossRef]

Ishikawa, T.

J. Yu, Y. Arai, T. Masaki, T. Ishikawa, S. Yoda, S. Kohara, H. Taniguchi, M. Itoh, and Y. Kuroiwa, “Fabrication of BaTi2O5 glass-ceramics with unusual dielectric properties during crystallization,” Chem. Mater.18(8), 2169–2173 (2006).
[CrossRef]

Itoh, K.

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

Y. Arai, K. Itoh, S. Kohara, and J. Yu, “Refractive index calculation using the structural properties of La4Ti9O24 glass,” J. Appl. Phys.103(9), 094905 (2008).
[CrossRef]

Itoh, M.

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

J. Yu, Y. Arai, T. Masaki, T. Ishikawa, S. Yoda, S. Kohara, H. Taniguchi, M. Itoh, and Y. Kuroiwa, “Fabrication of BaTi2O5 glass-ceramics with unusual dielectric properties during crystallization,” Chem. Mater.18(8), 2169–2173 (2006).
[CrossRef]

Izumitani, T.

S. Hirota and T. Izumitani, “Effect of cations on the inherent absorption wavelength and the oscillator strength of ultraviolet absorptions in borate glasses,” J. Non-Cryst. Solids29(1), 109–117 (1978).
[CrossRef]

Jerman, G. A.

J. K. R. Weber, J. G. Abadie, A. D. Hixson, P. C. Nordine, and G. A. Jerman, “Glass formation and polyamorphism in rare-earth oxide–aluminum oxide compositions,” J. Am. Ceram. Soc.83(8), 1868–1872 (2000).
[CrossRef]

Kaneko, M.

A. Masuno, Y. Watanabe, H. Inoue, Y. Arai, J. Yu, and M. Kaneko, “Glass-forming region and high refractive index of TiO2-based glasses prepared by containerless processing,” Phys. Status Solidi C9(12), 2424–2427 (2012).
[CrossRef]

H. Inoue, Y. Watanabe, A. Masuno, J. Yu, and M. Kaneko, “Effect of substituting Al2O3 and ZrO2 on thermal and optical properties of high refractive index La2O3–TiO2 glass system prepared by containerless processing,” Opt. Mater.33(12), 1853–1857 (2011).
[CrossRef]

Key, T. S.

S. Kohara, K. Suzuya, K. Takeuchi, C.-K. Loong, M. Grimsditch, J. K. R. Weber, J. A. Tangeman, and T. S. Key, “Glass formation at the limit of insufficient network formers,” Science303(5664), 1649–1652 (2004).
[CrossRef] [PubMed]

Kitamura, N.

N. Kitamura, K. Fukumi, J. Nakamura, T. Hidaka, H. Hashima, Y. Mayumi, and J. Nishii, “Optical properties of zinc bismuth phosphate glass,” Mater. Sci. Eng. B161(1-3), 91–95 (2009).
[CrossRef]

Kohara, S.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

A. Masuno, S. Kohara, A. C. Hannon, E. Bychkov, and H. Inoue, “Drastic connectivity change in high refractive index lanthanum niobate glasses,” Chem. Mater.25(15), 3056–3061 (2013).
[CrossRef]

S. Kohara, J. Akola, H. Morita, K. Suzuya, J. K. R. Weber, M. C. Wilding, and C. J. Benmore, “Relationship between topological order and glass forming ability in densely packed enstatite and forsterite composition glasses,” Proc. Natl. Acad. Sci. U.S.A.108(36), 14780–14785 (2011).
[CrossRef] [PubMed]

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

Y. Arai, K. Itoh, S. Kohara, and J. Yu, “Refractive index calculation using the structural properties of La4Ti9O24 glass,” J. Appl. Phys.103(9), 094905 (2008).
[CrossRef]

J. Yu, Y. Arai, T. Masaki, T. Ishikawa, S. Yoda, S. Kohara, H. Taniguchi, M. Itoh, and Y. Kuroiwa, “Fabrication of BaTi2O5 glass-ceramics with unusual dielectric properties during crystallization,” Chem. Mater.18(8), 2169–2173 (2006).
[CrossRef]

S. Kohara, K. Suzuya, K. Takeuchi, C.-K. Loong, M. Grimsditch, J. K. R. Weber, J. A. Tangeman, and T. S. Key, “Glass formation at the limit of insufficient network formers,” Science303(5664), 1649–1652 (2004).
[CrossRef] [PubMed]

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V. Dimitrov and T. Komatsu, “Classification of oxide glasses: A polarizability approach,” J. Solid State Chem.178(3), 831–846 (2005).
[CrossRef]

T. Honma, Y. Benino, T. Fujiwara, T. Komatsu, R. Sato, and V. Dimitrov, “Electronic polarizability, optical basicity, and interaction parameter of La2O3 and related glasses,” J. Appl. Phys.91(5), 2942–2950 (2002).
[CrossRef]

V. Dimitrov and T. Komatsu, “Interionic interactions, electronic polarizability and optical basicity of oxide glasses,” J. Ceram. Soc. Jpn.108(1256), 330–338 (2000).
[CrossRef]

V. Dimitrov and T. Komatsu, “Electronic polarizability, optical basicity and non-linear optical properties of oxide glasses,” J. Non-Cryst. Solids249(2-3), 160–179 (1999).
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J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

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H. Kozuka, R. Ota, and N. Soga, “Preparation and properties of binary oxide glasses containing rare earth oxides,” J. Soc. Mater. Sci. Jpn.35(388), 73–79 (1986).
[CrossRef]

Kubo, T.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

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J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

J. Yu, Y. Arai, T. Masaki, T. Ishikawa, S. Yoda, S. Kohara, H. Taniguchi, M. Itoh, and Y. Kuroiwa, “Fabrication of BaTi2O5 glass-ceramics with unusual dielectric properties during crystallization,” Chem. Mater.18(8), 2169–2173 (2006).
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S. Kohara, K. Suzuya, K. Takeuchi, C.-K. Loong, M. Grimsditch, J. K. R. Weber, J. A. Tangeman, and T. S. Key, “Glass formation at the limit of insufficient network formers,” Science303(5664), 1649–1652 (2004).
[CrossRef] [PubMed]

Masaki, T.

J. Yu, Y. Arai, T. Masaki, T. Ishikawa, S. Yoda, S. Kohara, H. Taniguchi, M. Itoh, and Y. Kuroiwa, “Fabrication of BaTi2O5 glass-ceramics with unusual dielectric properties during crystallization,” Chem. Mater.18(8), 2169–2173 (2006).
[CrossRef]

Masuno, A.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

A. Masuno, S. Kohara, A. C. Hannon, E. Bychkov, and H. Inoue, “Drastic connectivity change in high refractive index lanthanum niobate glasses,” Chem. Mater.25(15), 3056–3061 (2013).
[CrossRef]

A. Masuno, Y. Watanabe, H. Inoue, Y. Arai, J. Yu, and M. Kaneko, “Glass-forming region and high refractive index of TiO2-based glasses prepared by containerless processing,” Phys. Status Solidi C9(12), 2424–2427 (2012).
[CrossRef]

K. Yoshimoto, A. Masuno, H. Inoue, and Y. Watanabe, “Transparent and high refractive index La2O3–WO3 glass prepared using containerless processing,” J. Am. Ceram. Soc.95(11), 3501–3504 (2012).
[CrossRef]

Y. Watanabe, A. Masuno, and H. Inoue, “Glass formation of rare earth aluminates by containerless processing,” J. Non-Cryst. Solids358(24), 3563–3566 (2012).
[CrossRef]

H. Inoue, Y. Watanabe, A. Masuno, J. Yu, and M. Kaneko, “Effect of substituting Al2O3 and ZrO2 on thermal and optical properties of high refractive index La2O3–TiO2 glass system prepared by containerless processing,” Opt. Mater.33(12), 1853–1857 (2011).
[CrossRef]

A. Masuno, H. Inoue, J. Yu, and Y. Arai, “Refractive index dispersion, optical transmittance, and Raman scattering of BaTi2O5 glass,” J. Appl. Phys.108(6), 063520 (2010).
[CrossRef]

A. Masuno and H. Inoue, “High refractive index of 0.30La2O3– 0.70Nb2O5 glass prepared by containerless processing,” Appl. Phys. Express3(10), 102601 (2010).
[CrossRef]

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

Mayumi, Y.

N. Kitamura, K. Fukumi, J. Nakamura, T. Hidaka, H. Hashima, Y. Mayumi, and J. Nishii, “Optical properties of zinc bismuth phosphate glass,” Mater. Sci. Eng. B161(1-3), 91–95 (2009).
[CrossRef]

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M. C. Wilding, C. J. Benmore, and P. F. Mcmillan, “A neutron diffraction study of yttrium- and lanthanum-aluminate glasses,” J. Non-Cryst. Solids297(2-3), 143–155 (2002).
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J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

Morinaga, K.

S. Fujino, H. Takebe, and K. Morinaga, “Measurements of Refractive Indexes and Factors Affecting Dispersion in Oxide Glasses,” J. Am. Ceram. Soc.78(5), 1179–1184 (1995).
[CrossRef]

Morita, H.

S. Kohara, J. Akola, H. Morita, K. Suzuya, J. K. R. Weber, M. C. Wilding, and C. J. Benmore, “Relationship between topological order and glass forming ability in densely packed enstatite and forsterite composition glasses,” Proc. Natl. Acad. Sci. U.S.A.108(36), 14780–14785 (2011).
[CrossRef] [PubMed]

Nakahira, A.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

Nakamura, J.

N. Kitamura, K. Fukumi, J. Nakamura, T. Hidaka, H. Hashima, Y. Mayumi, and J. Nishii, “Optical properties of zinc bismuth phosphate glass,” Mater. Sci. Eng. B161(1-3), 91–95 (2009).
[CrossRef]

Nishii, J.

N. Kitamura, K. Fukumi, J. Nakamura, T. Hidaka, H. Hashima, Y. Mayumi, and J. Nishii, “Optical properties of zinc bismuth phosphate glass,” Mater. Sci. Eng. B161(1-3), 91–95 (2009).
[CrossRef]

Nitsche, F.

F. Vullum, F. Nitsche, S. M. Selbach, and T. Grande, “Solid solubility and phase transitions in the system LaNb1−xTaxO4,” J. Solid State Chem.181(10), 2580–2585 (2008).
[CrossRef]

Nitta, K.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
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J. K. R. Weber, J. G. Abadie, A. D. Hixson, P. C. Nordine, and G. A. Jerman, “Glass formation and polyamorphism in rare-earth oxide–aluminum oxide compositions,” J. Am. Ceram. Soc.83(8), 1868–1872 (2000).
[CrossRef]

Nozawa, S.

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

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J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
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H. Kozuka, R. Ota, and N. Soga, “Preparation and properties of binary oxide glasses containing rare earth oxides,” J. Soc. Mater. Sci. Jpn.35(388), 73–79 (1986).
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A. C. Barnes, L. B. Skinner, P. S. Salmon, A. Bytchkov, I. Pozdnyakova, T. O. Farmer, and H. E. Fischer, “Liquid-liquid phase transition in supercooled yttria-alumina,” Phys. Rev. Lett.103(22), 225702 (2009).
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A. C. Barnes, L. B. Skinner, P. S. Salmon, A. Bytchkov, I. Pozdnyakova, T. O. Farmer, and H. E. Fischer, “Liquid-liquid phase transition in supercooled yttria-alumina,” Phys. Rev. Lett.103(22), 225702 (2009).
[CrossRef] [PubMed]

Sato, R.

T. Honma, Y. Benino, T. Fujiwara, T. Komatsu, R. Sato, and V. Dimitrov, “Electronic polarizability, optical basicity, and interaction parameter of La2O3 and related glasses,” J. Appl. Phys.91(5), 2942–2950 (2002).
[CrossRef]

Selbach, S. M.

F. Vullum, F. Nitsche, S. M. Selbach, and T. Grande, “Solid solubility and phase transitions in the system LaNb1−xTaxO4,” J. Solid State Chem.181(10), 2580–2585 (2008).
[CrossRef]

Skinner, L. B.

A. C. Barnes, L. B. Skinner, P. S. Salmon, A. Bytchkov, I. Pozdnyakova, T. O. Farmer, and H. E. Fischer, “Liquid-liquid phase transition in supercooled yttria-alumina,” Phys. Rev. Lett.103(22), 225702 (2009).
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Soga, N.

H. Kozuka, R. Ota, and N. Soga, “Preparation and properties of binary oxide glasses containing rare earth oxides,” J. Soc. Mater. Sci. Jpn.35(388), 73–79 (1986).
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K.-H. Sun, “Fundamental condition of glass formation,” J. Am. Ceram. Soc.30(9), 277–281 (1947).
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S. Kohara, J. Akola, H. Morita, K. Suzuya, J. K. R. Weber, M. C. Wilding, and C. J. Benmore, “Relationship between topological order and glass forming ability in densely packed enstatite and forsterite composition glasses,” Proc. Natl. Acad. Sci. U.S.A.108(36), 14780–14785 (2011).
[CrossRef] [PubMed]

S. Kohara, K. Suzuya, K. Takeuchi, C.-K. Loong, M. Grimsditch, J. K. R. Weber, J. A. Tangeman, and T. S. Key, “Glass formation at the limit of insufficient network formers,” Science303(5664), 1649–1652 (2004).
[CrossRef] [PubMed]

Takata, M.

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

Takebe, H.

S. Fujino, H. Takebe, and K. Morinaga, “Measurements of Refractive Indexes and Factors Affecting Dispersion in Oxide Glasses,” J. Am. Ceram. Soc.78(5), 1179–1184 (1995).
[CrossRef]

Takeuchi, K.

S. Kohara, K. Suzuya, K. Takeuchi, C.-K. Loong, M. Grimsditch, J. K. R. Weber, J. A. Tangeman, and T. S. Key, “Glass formation at the limit of insufficient network formers,” Science303(5664), 1649–1652 (2004).
[CrossRef] [PubMed]

Tangeman, J. A.

S. Kohara, K. Suzuya, K. Takeuchi, C.-K. Loong, M. Grimsditch, J. K. R. Weber, J. A. Tangeman, and T. S. Key, “Glass formation at the limit of insufficient network formers,” Science303(5664), 1649–1652 (2004).
[CrossRef] [PubMed]

Taniguchi, H.

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

J. Yu, Y. Arai, T. Masaki, T. Ishikawa, S. Yoda, S. Kohara, H. Taniguchi, M. Itoh, and Y. Kuroiwa, “Fabrication of BaTi2O5 glass-ceramics with unusual dielectric properties during crystallization,” Chem. Mater.18(8), 2169–2173 (2006).
[CrossRef]

Uruga, T.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

Usuki, T.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

Vullum, F.

F. Vullum, F. Nitsche, S. M. Selbach, and T. Grande, “Solid solubility and phase transitions in the system LaNb1−xTaxO4,” J. Solid State Chem.181(10), 2580–2585 (2008).
[CrossRef]

Watanabe, Y.

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

Y. Watanabe, A. Masuno, and H. Inoue, “Glass formation of rare earth aluminates by containerless processing,” J. Non-Cryst. Solids358(24), 3563–3566 (2012).
[CrossRef]

K. Yoshimoto, A. Masuno, H. Inoue, and Y. Watanabe, “Transparent and high refractive index La2O3–WO3 glass prepared using containerless processing,” J. Am. Ceram. Soc.95(11), 3501–3504 (2012).
[CrossRef]

A. Masuno, Y. Watanabe, H. Inoue, Y. Arai, J. Yu, and M. Kaneko, “Glass-forming region and high refractive index of TiO2-based glasses prepared by containerless processing,” Phys. Status Solidi C9(12), 2424–2427 (2012).
[CrossRef]

H. Inoue, Y. Watanabe, A. Masuno, J. Yu, and M. Kaneko, “Effect of substituting Al2O3 and ZrO2 on thermal and optical properties of high refractive index La2O3–TiO2 glass system prepared by containerless processing,” Opt. Mater.33(12), 1853–1857 (2011).
[CrossRef]

Weber, J. K.

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[CrossRef] [PubMed]

Weber, J. K. R.

S. Kohara, J. Akola, H. Morita, K. Suzuya, J. K. R. Weber, M. C. Wilding, and C. J. Benmore, “Relationship between topological order and glass forming ability in densely packed enstatite and forsterite composition glasses,” Proc. Natl. Acad. Sci. U.S.A.108(36), 14780–14785 (2011).
[CrossRef] [PubMed]

S. Kohara, K. Suzuya, K. Takeuchi, C.-K. Loong, M. Grimsditch, J. K. R. Weber, J. A. Tangeman, and T. S. Key, “Glass formation at the limit of insufficient network formers,” Science303(5664), 1649–1652 (2004).
[CrossRef] [PubMed]

J. K. R. Weber, J. G. Abadie, A. D. Hixson, P. C. Nordine, and G. A. Jerman, “Glass formation and polyamorphism in rare-earth oxide–aluminum oxide compositions,” J. Am. Ceram. Soc.83(8), 1868–1872 (2000).
[CrossRef]

Wilding, M. C.

S. Kohara, J. Akola, H. Morita, K. Suzuya, J. K. R. Weber, M. C. Wilding, and C. J. Benmore, “Relationship between topological order and glass forming ability in densely packed enstatite and forsterite composition glasses,” Proc. Natl. Acad. Sci. U.S.A.108(36), 14780–14785 (2011).
[CrossRef] [PubMed]

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[CrossRef]

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[CrossRef]

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[CrossRef]

Yoshimoto, K.

K. Yoshimoto, A. Masuno, H. Inoue, and Y. Watanabe, “Transparent and high refractive index La2O3–WO3 glass prepared using containerless processing,” J. Am. Ceram. Soc.95(11), 3501–3504 (2012).
[CrossRef]

Yu, J.

A. Masuno, Y. Watanabe, H. Inoue, Y. Arai, J. Yu, and M. Kaneko, “Glass-forming region and high refractive index of TiO2-based glasses prepared by containerless processing,” Phys. Status Solidi C9(12), 2424–2427 (2012).
[CrossRef]

H. Inoue, Y. Watanabe, A. Masuno, J. Yu, and M. Kaneko, “Effect of substituting Al2O3 and ZrO2 on thermal and optical properties of high refractive index La2O3–TiO2 glass system prepared by containerless processing,” Opt. Mater.33(12), 1853–1857 (2011).
[CrossRef]

A. Masuno, H. Inoue, J. Yu, and Y. Arai, “Refractive index dispersion, optical transmittance, and Raman scattering of BaTi2O5 glass,” J. Appl. Phys.108(6), 063520 (2010).
[CrossRef]

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

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[CrossRef]

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[CrossRef]

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[CrossRef]

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J. Yu, Y. Arai, T. Masaki, T. Ishikawa, S. Yoda, S. Kohara, H. Taniguchi, M. Itoh, and Y. Kuroiwa, “Fabrication of BaTi2O5 glass-ceramics with unusual dielectric properties during crystallization,” Chem. Mater.18(8), 2169–2173 (2006).
[CrossRef]

J. Yu, S. Kohara, K. Itoh, S. Nozawa, S. Miyoshi, Y. Arai, A. Masuno, H. Taniguchi, M. Itoh, M. Takata, T. Fukunaga, S. Koshihara, Y. Kuroiwa, and S. Yoda, “Comprehensive structural study of glassy and metastable crystalline BaTi2O5,” Chem. Mater.21(2), 259–263 (2009).
[CrossRef]

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K. Yoshimoto, A. Masuno, H. Inoue, and Y. Watanabe, “Transparent and high refractive index La2O3–WO3 glass prepared using containerless processing,” J. Am. Ceram. Soc.95(11), 3501–3504 (2012).
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[CrossRef]

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Y. Arai, K. Itoh, S. Kohara, and J. Yu, “Refractive index calculation using the structural properties of La4Ti9O24 glass,” J. Appl. Phys.103(9), 094905 (2008).
[CrossRef]

A. Masuno, H. Inoue, J. Yu, and Y. Arai, “Refractive index dispersion, optical transmittance, and Raman scattering of BaTi2O5 glass,” J. Appl. Phys.108(6), 063520 (2010).
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Opt. Mater. (1)

H. Inoue, Y. Watanabe, A. Masuno, J. Yu, and M. Kaneko, “Effect of substituting Al2O3 and ZrO2 on thermal and optical properties of high refractive index La2O3–TiO2 glass system prepared by containerless processing,” Opt. Mater.33(12), 1853–1857 (2011).
[CrossRef]

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A. Masuno, Y. Watanabe, H. Inoue, Y. Arai, J. Yu, and M. Kaneko, “Glass-forming region and high refractive index of TiO2-based glasses prepared by containerless processing,” Phys. Status Solidi C9(12), 2424–2427 (2012).
[CrossRef]

Proc. Natl. Acad. Sci. U.S.A. (2)

J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T. Kubo, A. Nakahira, K. Nitta, T. Uruga, J. K. Weber, and C. J. Benmore, “Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses,” Proc. Natl. Acad. Sci. U.S.A.110(25), 10129–10134 (2013).
[CrossRef] [PubMed]

S. Kohara, J. Akola, H. Morita, K. Suzuya, J. K. R. Weber, M. C. Wilding, and C. J. Benmore, “Relationship between topological order and glass forming ability in densely packed enstatite and forsterite composition glasses,” Proc. Natl. Acad. Sci. U.S.A.108(36), 14780–14785 (2011).
[CrossRef] [PubMed]

Science (1)

S. Kohara, K. Suzuya, K. Takeuchi, C.-K. Loong, M. Grimsditch, J. K. R. Weber, J. A. Tangeman, and T. S. Key, “Glass formation at the limit of insufficient network formers,” Science303(5664), 1649–1652 (2004).
[CrossRef] [PubMed]

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Figures (6)

Fig. 1
Fig. 1

Glass formation region indicated in the (100−x)La2O3-xNb2O5 phase diagram. Circles, triangles, and crosses indicate glass, partially crystallized glass, and crystal, respectively. The range x = 35–45 is enlarged.

Fig. 2
Fig. 2

Glass transition temperatures Tg (circles) and crystallization temperatures TP (triangles) for the (100−x)La2O3-xNb2O5 glasses. The inset shows ΔT (TgTP); the dotted line is a guide for the eyes.

Fig. 3
Fig. 3

(a) Densities and (b) molar volumes for the (100−x)La2O3-xNb2O5 glasses. The closed symbols correspond to the glasses and the open symbols correspond to crystalline LaNbO4. The dotted lines are fitted lines.

Fig. 4
Fig. 4

Transmittance spectra for the (100−x)La2O3-xNb2O5 glasses. The inset shows the compositional dependence of the optical bandgap Eopt.

Fig. 5
Fig. 5

Refractive index dispersion for the (100−x)La2O3-xNb2O5 glasses. The inset shows the compositional dependence of the refractive index nd (circles) and Abbe number νd (triangles).

Fig. 6
Fig. 6

Oxygen polarizabilities for the (100−x)La2O3-xNb2O5 glasses.

Equations (5)

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

ν d = n d 1 n F n C
α h ν = A ( h ν E opt ) 2
1 n 2 1 = π m c 2 e 2 N f ( 1 λ 0 2 1 λ 2 )
n 2 1 n 2 + 2 M ρ = n 2 1 n 2 + 2 V m = 4 π α m N A 3
α m = α i + α O 2 N O 2

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