Phonon dispersion of zinc chalcogenides under extreme pressure and the metallic transformation

doi:10.1016/0038-1098(77)90369-6

beta

Phonon dispersion of zinc chalcogenides under extreme pressure and the metallic transformation

B. Weinstein

Dec 1, 1977

Citations

Quality indicators

Journal

Solid State Communications

Full text

Semantic Scholar

Key Takeaway

Key Takeaway: High pressure on ZnTe, ZnSe, and ZnS phonons "softens" their zone boundary transverse acoustic phonons, leading to their metallic phase transitions.

Abstract

Abstract The effect of high pressure on the one- and two-phonon Raman spectra of ZnTe, ZnSe, and ZnS has been measured up to their metallic phase transitions, at 95, 137, and 150 kbar respectively. Zone boundary transverse acoustic phonons “soften” with pressure in each case. For ZnTe, ZnSe, ZnS, Si, and GaP a linear correlation is found between the mode Gruneisen parameters for TA(X) and the transition pressures.

Text copied to clipboard

copied to clipboard