High pressure electrical transport behavior in SrF2 nanoplates

doi:10.1088/1674-1056/26/4/046401

Abstract The charge transport behavior of strontium fluoride nanocrystals has been investigated by in situ impedance measurement up to 35 GPa. It was found that the parameters changed discontinuously at each phase transition. The charge carriers in SrF₂ nanocrystals include both F^- ions and electrons. In the Fm3m phase, pressure makes the electronic transport easier, while makes it more difficult in the Pnma phase. The defects at grain boundaries dominate the electronic transport process. Pressure could make the charge-discharge processes in the Fm3m phase much easier, but make it more difficult in the Pnma phase.

Keywords: electrical properties phase transitions transport properties

Received: 19 December 2016
Revised: 17 January 2017
Accepted manuscript online:

PACS:	64.60.-i	(General studies of phase transitions)
	72.20.-i	(Conductivity phenomena in semiconductors and insulators)
	07.35.+k	(High-pressure apparatus; shock tubes; diamond anvil cells)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11374131, 11674404, 11404137, and 61378085), the Program for New Century Excellent Talents in University, China (Grant No. NCET-13-0824), the Program for the Development of Science and Technology of Jilin Province, China (Grant Nos. 201201079 and 20150204085GX), and the Twentieth Five-Year Program for Science and Technology of Education Department of Jilin Province, China (Grant No. 20150221).

Corresponding Authors: Ting-Jing Hu, Chun-Xiao Gao
E-mail: tjhumars@126.com;cc060109@qq.com

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Xiao-Yan Cui(崔晓岩), Ting-Jing Hu(胡廷静), Jing-Shu Wang(王婧姝), Jun-Kai Zhang(张俊凯), Xue-Fei Li(李雪飞), Jing-Hai Yang(杨景海), Chun-Xiao Gao(高春晓) High pressure electrical transport behavior in SrF₂ nanoplates 2017 Chin. Phys. B 26 046401

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High pressure electrical transport behavior in SrF₂ nanoplates