High pressure phase transition in mercury selenide
Affiliation:
1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;2. College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling 408100, China;1. Department of Microbiology and Immunology, Infection, Inflammation, and Immunity (I3) Research Group, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada;2. Department of Pathology, Immunology and Laboratory Medicine, University of Florida College of Medicine, Gainesville, Florida 32610, USA;3. Department of Endocrinology, Diabetes and Metabolism, University of Florida College of Medicine, Gainesville, Florida, USA
Abstract:
It was shown by electrical resistance measurements that under pressures near 7.5 kbars and at room temperature, the zinc-blende structure HgSe transformed to a new phase. The transformation was found to be reversible although a distinct hysteresis was encountered. At low temperatures (below 170°K) the high pressure phase of HgSe was retained at atmospheric pressure and was shown by X-ray diffraction techniques to be hexagonal with a = 4.32 Å, c = 9.62 Å, and a calculated density of 8.95 gmscm3 role=presentation style=font-size: 90%; display: inline-block; position: relative;>.
