The electrical transportation and carrier behavior of ZnSe under high pressure |
| |
| Authors: | Tingjing Hu Xiaoyan Cui Xuefei Li Jingshu Wang Jinghai Yang Chunxiao Gao |
| |
| Institution: | 1. Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, Jilin 136000, People's Republic of China;2. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People's Republic of China;3. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People's Republic of China |
| |
| Abstract: | With in situ electrical resistivity and Hall effect measurement, electrical transportation property and charge carrier behavior of ZnSe were investigated under high pressure using a diamond anvil cell (DAC). The electrical resistivity changed discontinuously at 7.7 and 11.9?GPa, corresponding to the phase transitions of ZnSe. In the pressure interval of 7.7–11.9?GPa, the electrical resistivity changed continuously, indicating the existence of the intermediate phase between the zinc blende and rock salt phases. The difference of carrier characteristic between the intermediate and rock salt phases can also suggest the existence of the intermediate phase. For the intermediate phase, the increase in electrical resistivity is from the decrease in mobility. While for the rock salt phase, the increase in charge carrier concentration leads to the decrease in electrical resistivity. |
| |
| Keywords: | high pressure electrical transportation carrier behavior phase transition |
|
|
