Neutron Scattering Study of Lattice Dynamics in CuBr Part I. Phonon Dispersion Relations
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- Hoshino Sadao
- Institute for Solid State Physics, The University of Tokyo
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- Fujii Yasuhiko
- Institute for Solid State Physics, The University of Tokyo
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- Harada Jimpei
- Department of Applied Physics, Nagoya University
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- Axe J. D.
- Physics Department, Brookhaven National Laboratory
抄録
Phonon dispersion relations of CuBr having zincblende-type structure were measured by the neutron inelastic scattering technique with a triple-axis spectrometer. The dispersion curves measured at 77 K were well described by the shell model with 14 parameters which has been successfully applied to explain the data for GaAs, GaP and InSb. The elastic constants were obtained both from sound velocities estimated from the initial slopes of acoustic phonon dispersion curves and from the shell-model-fit. The optical phonon energies at the zone center are in good agreement with the Raman scattering data. The temperature dependence of phonon scattering was also measured. It was found that the phonon energies as well as the shape of phonon peaks varied considerably with temperature, suggesting that the effect of anharmonicity is remarkable in CuBr even at room temperature.
収録刊行物
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 41 (3), 965-973, 1976
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679165436160
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- NII論文ID
- 210000086290
- 130003894940
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- BIBCODE
- 1976JPSJ...41..965H
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- COI
- 1:CAS:528:DyaE28Xls12qtb4%3D
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- ISSN
- 13474073
- 00319015
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可