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Phase Transition of FeS in Terms of In-Situ Resistance Measurement
作者姓名:李明  高春晓  张东梅  贺春元  郝爱民  黄晓伟  于翠玲  李延春  李晓东  刘景  邹广田
作者单位:[1]State Key Laboratory for Superhard Materials, Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012 [2]Beiting Synchrotron Radiation Laboratories, Institute of High Energy Physics, Chinese Academy of Sciences, Beiting 100039
基金项目:Supported by the National Natural Science Foundation of China under Grant Nos 40473034 , 40404007 and 50532020, and the National Basic Research Programme of China under Grant No 2005CB724404.
摘    要:Electrical properties of stoichiometric iron sulfide (FeS) are investigated under high pressure with a designed diamond anvil cell. The process of phase transition is reflected by changing the electrical conductivity under high pressure, and the conductivity of FeS with the NiAs structure is found to be much smaller than other phases. Two new phase transitions without structural change are observed at 34.7 GPa and 61.3 GPa. The temperature dependence of the conductivity is found to be similar to that of a semiconductor when the pressure is higher than 35 GPa

关 键 词:FeS  相位转移  电阻  测量方法  物理学
修稿时间:2006-06-20

Phase Transition of FeS in Terms of In-Situ Resistance Measurement
LI Ming,GAO Chun-Xiao,ZHANG Dong-Mei,HE Chun-Yuan,HAO Ai-Min,HUANG Xiao-Wei,YU Cui-Ling,LI Yan-Chun,LI Xiao-Dong,LIU Jing,ZOU Guang-Tian.Phase Transition of FeS in Terms of In-Situ Resistance Measurement[J].Chinese Physics Letters,2007,24(1):54-56.
Authors:LI Ming  GAO Chun-Xiao  ZHANG Dong-Mei  HE Chun-Yuan  HAO Ai-Min  HUANG Xiao-Wei  YU Cui-Ling  LI Yan-Chun  LI Xiao-Dong  LIU Jing  ZOU Guang-Tian
Institution:State Key Laboratory for Superhard Materials, Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012 Beijing Synchrotron Radiation Laboratories, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
Abstract:Electrical properties of stoichiometric iron sulfide (FeS) are investigated under high pressure with a designed diamond anvil cell. The process of phase transition is reflected by changing the electrical conductivity under high pressure, and the conductivity of FeS with the NiAs structure is found to be much smaller than other phases. Two new phase transitions without structural change are observed at 34.7GPa and 61.3GPa. The temperature dependence of the conductivity is found to be similar to that of a semiconductor when the pressure is higher than 35GPa
Keywords:07  35  +k  07  50  Ek  64  70  Kb
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