Magnetic and electrical transport properties of Cr-3(Se1-xTex)(4) compounds

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	Magnetic and electrical transport properties of Cr-3(Se1-xTex)(4) compounds
	Y. B. Li; E. Brueck; O. Tegus; Y. Q. Zhang; W. T. Feng; N. K. Sun; D. Li; J. Li; T. J. Gortenmulder; Y. K. Huang; Z. D. Zhang
	2008
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	461 期号:1-2 页码:21-25
摘要	The magnetic and electrical transport behaviors of Cr-3(Se1-xTex)(4) compounds are investigated. A transition from antiferromagnetism to ferromagnetism occurs at x = 0.2 in this system and abnormal changes of the lattice parameter alpha and angle beta take place around the magnetic transition point. When Se is partially substituted by T-min a minimum of resistivity (rho(min)) is observed in the temperature dependence of resistivity. The temperature T-min where the minimum rho(min) is, increases with T-min concentration. The minimum in resistivity at T-min is ascribed to the competition between a diminishing resistivity due to domain ordering and a rising resistivity due to disordered frozen spins in each domain. The electrical transport behavior below T-min is described by hopping conductivity in terms of variable range-hopping. An external magnetic field affects strongly the resistivity of the Cr-3(Se1-xTex)(4) compounds, which shifts the magnetic ordering temperature T-MO to higher temperature and T-min to lower temperature. Subsequently, a negative magnetoresistance is found in this system. (c) 2007 Elsevier B.V. All rights reserved.
部门归属	[li, y. b.; zhang, y. q.; feng, w. t.; sun, n. k.; li, d.; li, j.; zhang, z. d.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [li, y. b.; zhang, y. q.; feng, w. t.; sun, n. k.; li, d.; li, j.; zhang, z. d.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [li, y. b.; brueck, e.; tegus, o.; gortenmulder, t. j.; huang, y. k.] univ amsterdam, van waals zeeman inst, nl-1018 xe amsterdam, netherlands.;li, yb (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;ybli@imr.ac.cn
关键词	Magnetic Resistivity Metal-insulator Transition Magnetoresistance Giant Magnetoresistance Colossal Magnetoresistance Negative Magnetoresistance Quantum Interference Temperature Systems Mn Electroconductivity Semiconductors Conductivity
URL	查看原文
WOS记录号	WOS:000258036500014
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32904
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. B. Li,E. Brueck,O. Tegus,et al. Magnetic and electrical transport properties of Cr-3(Se1-xTex)(4) compounds[J]. Journal of Alloys and Compounds,2008,461(1-2):21-25.
APA	Y. B. Li.,E. Brueck.,O. Tegus.,Y. Q. Zhang.,W. T. Feng.,...&Z. D. Zhang.(2008).Magnetic and electrical transport properties of Cr-3(Se1-xTex)(4) compounds.Journal of Alloys and Compounds,461(1-2),21-25.
MLA	Y. B. Li,et al."Magnetic and electrical transport properties of Cr-3(Se1-xTex)(4) compounds".Journal of Alloys and Compounds 461.1-2(2008):21-25.