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

Pramana

M Talati¹  Prafulla K Jha1¹  S P Sanyal²  S Shinde¹ 

[1] Department of Physics, Faculty of Science, M.S. University of Baroda, Vadodara 390 002, India$$;Department of Physics, University of Bhopal, Bhopal 462 026, India$$

关键词: Phonons;    acoustic;    high pressure.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 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.

【 授权许可】

Unknown