Crystallization and Raman Spectra of Langasite-Type Phases in Glasses of La3Ga5GeO14–Ba3Ga2Ge4O14 System
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概要
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Crystallization of the langasite-type La3Ga5GeO14–Ba3Ga2Ge4O14 mixed crystals in the stoichiometric corresponding glasses was studied by differential thermal and X-ray diffraction analyses, and by Raman spectroscopy. Although the glasses used in this study were multicomponent systems (BaO–La2O3–Ga2O3–GeO2), the langasite-type phases were singly crystallized in the corresponding glasses. The Raman spectroscopic study revealed the structural similarity on the scale of short-range order between the langasite-type phase and the corresponding glasses. This also strongly suggested the coexistence of Ga and Ge with six-coordination in the gallogermanate glasses.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-09-15
著者
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Fujiwara Takumi
Department Of Applied Physics School Of Engineering Tohoku University
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Komatsu Takayuki
Department Of Chemistry Nagaoka University Of Technology
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Kitamura Kenji
Advanced Materials Laboratory National Institute For Materials Science
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Inoue Satoru
Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Komatsu Takayuki
Department of Chemistry, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, Niigata 940-2188, Japan
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Benino Yasuhiko
Department of Chemistry, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, Niigata 940-2188, Japan
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Takahashi Yoshihiro
International Center for Young Scientists, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Fujiwara Takumi
Department of Chemistry, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, Niigata 940-2188, Japan
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