Raman Scattering and Fluorescence Spectra of LaNbO_4
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概要
- 論文の詳細を見る
The Raman and fluorescence spectra of LaNb0. were observed in the tempera-ture range from I5'C to 650'C with excitation light of various wavelengths. Thelowest frequency phonon mode shows anomalous temperature dependencearound a ferroelastic phase transition point 7'.=495'C and splitting of thedegenerate phonon modes was observed below T.. These results are discussed,using a Landau-type free energy. In addition to the phonon modes, three fluores-cence lines were observed at 20525cm-', 20460cm-' and 20427cm='. Theintensity of these lines decreases exponentially as the temperature increases.These fluorescence lines seem to be due to lanthanide ions contain.ed in thecrystal as imptu'ities.
- 社団法人日本物理学会の論文
- 1979-11-15
著者
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ISHIBASHI Yoshihiro
Synthetic Crystal Research Laboratory, Faculty of Engineering, Nagoya University
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SAWADA Akikatsu
Synthetic Crystal Research Laboratory,Faculty of Engineering,Nagoya University
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TSUNEKAWA Shin
The Research Institute for Iron,Steel and Other Metals,Tohoku University
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Sawada A
Muroran Inst. Technology Muroran
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WADA Mitsuo
Synthetic Crystal Research Laboratory,Faculty of Engineering,Nagoya University
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NAKAYAMA Yoshinori
Synthetic Crystal Research Laboratory,Faculty of Engineering,Nagoya University
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Ishibashi Yoshihiro
Synthetic Crystal Research Laboratory
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Tsunekawa S
Institute For Materials Research Tohoku University
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Tsunekawa Shin
The Research Institute For Iron Steel And Other Metals
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Sawada Akikatsu
Synthetic Crystal Research Laboratory
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Nakayama Yoshinori
Synthetic Crystal Research Laboratory Faculty Of Engineering Nagoya University
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Wada Mitsuo
Synthetic Crystal Research Laboratory Faculrty Of Engineering Nagoya University
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Ishibashi Yoshihiro
Synthehic Crystal Reseach Laboratory Faculty Of Engineering Nagoya University
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