Theoretical study of the transverse acoustic phonons of GaSb at high pressure

被引：4
|
作者：
Shinde, S [1 ]
Talati, M
Jha, PK
Sanyal, SP
机构：
[1] Maharaja Sayajirao Univ Baroda, Fac Sci, Dept Phys, Baroda 390002, Gujarat, India
[2] Univ Bhopal, Dept Phys, Bhopal 462026, India
来源：
PRAMANA-JOURNAL OF PHYSICS | 2004年 / 63卷 / 02期
关键词：
phonons; acoustic; high pressure;
D O I：
10.1007/BF02705010
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have investigated the phonon dispersion curves and one-phonon density of states up to the pressure of 8 GPa using a theoretical model, namely the rigid ion model. The transverse acoustic phonons as a function of pressure have been compared with the recently measured inelastic neutron scattering data which show a strong softening near the zone boundaries. The calculated one-phonon density of states show pronounced shift in the peak positions with the increase in pressure.
引用
收藏
页码：425 / 429
页数：5
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