In situ electrical impedance spectroscopy under high pressure on diamond anvil cell

	In situ electrical impedance spectroscopy under high pressure on diamond anvil cell
	He, CY; Gao, CX; Ma, YZ; Li, M; Hao, AM; Huang, XW; Liu, BG; Zhang, DM; Yu, CL; Zou, GT
刊名	APPLIED PHYSICS LETTERS
	2007
卷号	91 期号:9 页码:92124
通讯作者	Jilin Univ, State Key Lab Superhard Mat, Inst Atom & Mol Phys, Changchun 130012, Peoples R China ; Texas Tech Univ, Dept Mech Engn, Lubbock, TX 79409 USA ; Chinese Acad Sci, Beijing Synchrotron Radiat Labs, Inst High Energy Phys, Beijing 100039, Peoples R China
英文摘要	The effect of grain boundary on electrical transportation properties is a basic physical problem and also a subject of material science and technology. In situ electrical measurement of powdered materials under high pressure provides a chance to figure out the electrical properties of grain boundaries. In this letter, the authors report an in situ impedance spectroscopy method used in conjunction with a diamond anvil cell for electrical property research of grain boundaries under high pressure. Powdered CdS was pressed up to 23 GPa and an impedance arc corresponding to the grain boundary was detected. It was found that the electrical property of the grain boundary changed with pressure and could be determined by the resistance and the relaxation frequency. Pressure decreases the effective scattering section of the grain boundary to charge carriers, and finally leads to the decrease of resistance and activation energy of the grain boundary.
学科主题	Physics
类目[WOS]	Physics, Applied
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000249156100071
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240846]
专题	高能物理研究所_多学科研究中心东莞分部_加速器技术部
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	He, CY,Gao, CX,Ma, YZ,et al. In situ electrical impedance spectroscopy under high pressure on diamond anvil cell[J]. APPLIED PHYSICS LETTERS,2007,91(9):92124.
APA	He, CY.,Gao, CX.,Ma, YZ.,Li, M.,Hao, AM.,...&刘景.(2007).In situ electrical impedance spectroscopy under high pressure on diamond anvil cell.APPLIED PHYSICS LETTERS,91(9),92124.
MLA	He, CY,et al."In situ electrical impedance spectroscopy under high pressure on diamond anvil cell".APPLIED PHYSICS LETTERS 91.9(2007):92124.