Brillouin Scattering Study of CuGeO_3
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概要
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Brillouin scattering of CuGeO_3 has been measured in the temperature range from room temperature to 20 K to investigate the relationship between spin-Peierls transition at T_<sp>= 14 K and the elastic anomaly observed by neutron scattering. The excitation energy of the longitudinal acoustic phonon mode propagating along the b axis is as low as that of the transverse mode polarized along the c axis at room temperature. However, the low-lying longitudinal mode exhibits no anomalous temperature dependence in the observed temperature range. No critical behaviors for the phase transition at 14 K were observed in the acoustic phonon modes.
- 社団法人日本物理学会の論文
- 1995-04-15
著者
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Yamaguchi Hirotaka
Electrotechnical Laboratory
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Yagi Toshirou
Reseach Institute For Electronic Science Hokkaido University
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Yamaguchi Masashi
Research Institute For Electronic Science Hokkaido University
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Yamaguchi Masashi
Research Center For Pathogenic Fungi And Microbial Toxicoses Chiba University
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Yamaguchi Hirotaka
Electrotech. Lab. Tsukuba
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YAMAGUCHI Hirotaka
Electrotech. Lab. , Tsukuba
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