Magnetic, electronic transport and magneto-transport behaviors of CoxFe1-xMnP compounds

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	Magnetic, electronic transport and magneto-transport behaviors of CoxFe1-xMnP compounds
	N. K. Sun; Y. B. Li; D. Li; Q. Zhang; J. Du; D. K. Xiong; W. S. Zhang; S. Ma; J. J. Liu; Z. D. Zhang
	2007
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	429 期号:1-2 页码:29-33
摘要	Magnetic, electronic transport and magneto-transport behaviors of CoxFe1-xMnP (0.40 <= x <= 0.75) compounds have been investigated systematically. Co0.4Fe0.6MnP is antiferromagnetic below its Neel temperature of 310 K, while an anomalous increase of resistivity occurs with decreasing the temperature from 350 to 190 K, which is attributed to the effect of critical spin fluctuation on resistivity. Increasing Co concentration gives rise to dramatic changes of magnetic, electronic transport and magneto-tran sport behaviors. With increasing temperature, a magnetic phase transition from an antiferromagnetic state to a ferromagnetic one takes place at about 280, 218 and 180K for Co0.55Fe0.45MnP, Co0.65Fe0.35MnP and Co0.75Fe0.25MnP, respectively. Moreover, the compounds experience a metal-insulator transition at 26, 29, 35 and 45 K, respectively, for x = 0.40, 0.55, 0.65 and 0.75. Maximum magnetoresistance ratios of -8.1%, -4.7% and -2.9% are observed in the Co0.75Fe0.25MnP, Co0.65Fe0.35MnP and Co0.55Fe0.45MnP compounds at an external magnetic field of 5 T. The mechanisms of magnetoresistance behaviors are interpreted in terms of the suppression of spin fluctuations in the antiferromagnets by the applied fields. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;sun, nk (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;nksun@imr.ac.cn
关键词	Antiferromagnetic Anderson Transition Magnetoresistance Magnetoresistance Resistivity Transition Systems Alloys
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WOS记录号	WOS:000244673100006
引用统计	被引频次：7[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/321006/33822
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	N. K. Sun,Y. B. Li,D. Li,et al. Magnetic, electronic transport and magneto-transport behaviors of CoxFe1-xMnP compounds[J]. Journal of Alloys and Compounds,2007,429(1-2):29-33.
APA	N. K. Sun.,Y. B. Li.,D. Li.,Q. Zhang.,J. Du.,...&Z. D. Zhang.(2007).Magnetic, electronic transport and magneto-transport behaviors of CoxFe1-xMnP compounds.Journal of Alloys and Compounds,429(1-2),29-33.
MLA	N. K. Sun,et al."Magnetic, electronic transport and magneto-transport behaviors of CoxFe1-xMnP compounds".Journal of Alloys and Compounds 429.1-2(2007):29-33.