Theoretical study of the transverse acoustic phonons of GaSb at high pressure |
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| Authors: | S. Shinde M. Talati Prafulla K. Jha S. P. Sanyal |
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| Affiliation: | (1) Department of Physics, Faculty of Science, M.S. University of Baroda, 390 002 Vadodara, India;(2) Department of Physics, University of Bhopal, 462 026 Bhopal, India |
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| Abstract: | 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. |
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| Keywords: | Phonons acoustic high pressure |
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