Magnetic polaron mechanism of electron transport and magnetoresistance in spin systems: a Monte-Carlo simulation

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	Magnetic polaron mechanism of electron transport and magnetoresistance in spin systems: a Monte-Carlo simulation
	J. M. Liu; Y. Yang; X. H. Zhou; X. Y. Chen; Z. G. Liu
	2003
发表期刊	Materials Science and Engineering B-Solid State Materials for Advanced Technology
ISSN	0921-5107
卷号	99 期号:1-3 页码:558-562
摘要	A Monte-Carlo simulation of electron transport in a phase separated spin system in terms of itinerant electron tunneling between neighboring magnetic polarons is performed. The spin system is supposed to be a mixture of ferromagnetic metallic clusters embedded into the matrix of antiferromagnetic insulating phase. The simulation is based on a simple model on magnetic polarons in double exchange system. The co-occurrence of insulating-metallic transition and ferromagnetic transition with decreasing temperature is observed and a giant magnetoresistance around the transition is demonstrated. The present model presents a simple approach to the electron transport in phase-separated spin systems with itinerant electron conduction, such as manganites. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属	nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china. chinese acad sci, int ctr mat phys, shenyang, peoples r china.;liu, jm (reprint author), nanjing univ, solid state microstruct lab, hankou rd 22, nanjing 210093, peoples r china
关键词	Magnetic Polaron Phase Separation Magnetoresistance Monte-carlo Simulation Double-exchange Manganites
URL	查看原文
WOS记录号	WOS:000184120300133
引用统计	被引频次：2[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/321006/35926
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. M. Liu,Y. Yang,X. H. Zhou,et al. Magnetic polaron mechanism of electron transport and magnetoresistance in spin systems: a Monte-Carlo simulation[J]. Materials Science and Engineering B-Solid State Materials for Advanced Technology,2003,99(1-3):558-562.
APA	J. M. Liu,Y. Yang,X. H. Zhou,X. Y. Chen,&Z. G. Liu.(2003).Magnetic polaron mechanism of electron transport and magnetoresistance in spin systems: a Monte-Carlo simulation.Materials Science and Engineering B-Solid State Materials for Advanced Technology,99(1-3),558-562.
MLA	J. M. Liu,et al."Magnetic polaron mechanism of electron transport and magnetoresistance in spin systems: a Monte-Carlo simulation".Materials Science and Engineering B-Solid State Materials for Advanced Technology 99.1-3(2003):558-562.