Raman Scattering and Phase Transitions in BaZnGeO_4 Crystal
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概要
- 論文の詳細を見る
The polarized Raman spectra of BaZnGe03.crystaI were measured at variousgeometrical arrangements corresponding to AUTO), Ez(TO)-1-E.(LO) and E.representations over the temperature range 440'C'=' -1l0'C, which covers thewhole phases except for the phase I. In the low-frequency region below 300 cm ',the spectral feature varies depending upon temperature and a characteristicpattern of Raman spectrum for each phase is clarified. The spectral change due tothe II-III phase transition appears continuous, in agreement with the second ordernature. No spectral change is observed in the III-IV transition. The phase transi-tion IV-V is clearly distinguished in the Raman spectra by an abrupt change ofseveral bands and a thermal hysteresis, which reflects the fsrst order nature.
- 社団法人日本物理学会の論文
- 1984-01-15
著者
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NAKAGAWA Ichiro
Department of Neurosurgery, Nara Medical University
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Shirai Hiroshi
Department Of Cardiology Suruga-dai Nihon University Hospital
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Takei Humihiko
The Research Institute For Iron Steel And Other Metals Tohoku University
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Shirai Hiroshi
Department Of Chemistry Faculty Of Science Tohoku University
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MORIOKA Yoshiyuki
Department of Chemistry,Faculty of Science,Tohoku University
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Nakagawa Ichiro
Department Of Chemistry Faculty Of Science Tohoku University
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Morioka Yoshiyuki
Department Of Chemistry Faculty Of Science Tohoku University
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Morioka Yoshiyuki
Department Of Chemistry Faculty Of Science Saitama University
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Nakagawa Ichiro
Department of Chemistry,Faculty of Science,Tohoku University
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