Structural phase transitions of tellurium nanoplates under pressure
Abstract
In situ high-pressure angle dispersive x-ray diffraction experiments using synchrotron radiation on Te nanoplates were carried out with a diamond anvil cell at room temperature. The results show that Te-I with a trigonal structure transforms to triclinic Te-II at about 4.9 GPa, Te-II transforms to monoclinic Te-III at about 8.0 GPa, Te-III turns to rhombohedral Te-IV at about 23.8 GPa, and Te-IV changes to body centered cubic Te-V at 27.6 GPa. The bulk moduli B0 of Te nanoplates are higher than those of Te bulk materials.
Project supported by the State Key Development Program for Basic Research of China (Grant No. 2012CB932302) and the National Natural Science Foundation of China (Grant Nos. 10974235 and 11174336).- Publication:
-
Chinese Physics B
- Pub Date:
- March 2015
- DOI:
- 10.1088/1674-1056/24/3/036401
- Bibcode:
- 2015ChPhB..24c6401L