PROPERTIES OF FE DOPED BETA-HGS UNDER HYDROSTATIC-PRESSURE

High pressure- high temperature studies of the structural (zinc blende -cinnabar) phase transitions were performed in Hg1-xFexS mixed crystal s (x < 0.1) using synchrotron radiation and multianvil X-ray diffracti on press. Pressure investigations of the Hall effect and conductivity of crystals containing up to a few percent of Fe were also performed a t 295 K and 77 K. It was demonstrated that Fe in beta-HgS creates deep , localized donor state resonant with the conduction band.