High pressure investigations on amorphous selenium |
| |
Authors: | N V Chandra Shekar M Yousuf P Ch Sahu M Mahendran K Govinda Rajan |
| |
Affiliation: | (1) Materials Science Division, Indira Gandhi Centre for Atomic Research, 603 102 Kalpakkam, India;(2) Department of Physics, Anna University, 600 025 Madras, India |
| |
Abstract: | We report the diamond anvil cell (DAC) high pressure powder X-ray diffraction studies on amorphous selenium (a-Se) under truly hydrostatic pressure condition up to 20 GPa. Amorphous selenium exhibits a sharp and irreversible transition to a hexagonal structure at 10.6 ± 0.1 GPa. It is also known that metallization occurs in a-Se around this pressure. Some plausible arguments are provided to suggest that the amorphous to crystalline transition may be driven by metallization. |
| |
Keywords: | Amorphous selenium diamond anvil cell hydrostatic pressure crystallization metallization |
本文献已被 SpringerLink 等数据库收录! |