PRESSURE-DEPENDENCE OF THE RAMAN-SPECTRA OF INDIUM SULFIDE

1981-01-01
FARADZHEV, FE
Hasanlı, Nızamı
RAGIMOV, AS
GONCHAROV, AF
SUBBOTIN, SI
Raman spectra of InS single crystals have been studied at different hydrostatic pressures up to 1.2 GPa. Mode-Grüneisen parameters have been obtained for Raman-active normal modes. It is shown that the variations observed in Raman spectra with growing pressure can be interpreted from the standpoint of the structural phase transition D122h → D174h in InS as the hydrostatic pressure continues to increase. The transition pressure has been evaluated at (7 ± 1) GPa.