Elastic Constants and Phonon Dispersion Curves of Tetragonal La2 CuO4 Single Crystal
MU Yaoming, TAO Ruibao*
Department of Physics, Fudan University, Shanghai 200433
* also Center of Theoretical Physics (CCAST World Laboratory), Beijing 100080
Elastic Constants and Phonon Dispersion Curves of Tetragonal La2 CuO4 Single Crystal
MU Yaoming;TAO Ruibao*
Department of Physics, Fudan University, Shanghai 200433
* also Center of Theoretical Physics (CCAST World Laboratory), Beijing 100080
关键词 ：
62.20.Dc ,
63.20.Dj
Abstract ： The elastic constants and phonon dispersion curves of tetragonal La2 CuO4 single crystal are calculated with rigid-ion model. We obtain rather good agreement between the computed and measured elastic constants. The calculated phonon dispersion curves exhibit a rather conventional behavior except the anomaly of a Σ4 , symmetry TO mode at Γ-X direction.
Key words ：
62.20.Dc
63.20.Dj
出版日期: 1991-04-01
引用本文:
MU Yaoming;TAO Ruibao*. Elastic Constants and Phonon Dispersion Curves of Tetragonal La2 CuO4 Single Crystal[J]. 中国物理快报, 1991, 8(4): 195-198.
2 CuO4 Single Crystal. Chin. Phys. Lett., 1991, 8(4): 195-198.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1991/V8/I4/195
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