Role of magnetic polarons in magnetotransport of phase-separated electron systems: Monte-Carlo simulation

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	Role of magnetic polarons in magnetotransport of phase-separated electron systems: Monte-Carlo simulation
	K. F. Wang; S. Dong; J. M. Liu
	2004
发表期刊	Computational Materials Science
ISSN	0927-0256
卷号	30 期号:3-4 页码:453-460
摘要	A kinetic Monte-Carlo simulation on magnetotransport behaviors of phase-separated magnetic conduction systems where the magnetic polaron aggregates are mixed with insulating phase is presented. The electron conductance is calculated by the spin-dependent electron tunneling among the magnetic polarons. The magnetotransport behavior as a function of volume fraction of magnetic polarons is simulated, reproducing the co-appearance of the insulating-metallic and ferromagnetic transitions. The metallic-insulating transition at low temperature is revealed. The picture of magnetic polaron aggregation as a mode magnetic insulator may be helpful to understand the magneto transport behaviors in manganites. (C) 2004 Elsevier B.V. All rights reserved.
部门归属	nanjing univ, solid state microstruct lab, dept phys, nanjing 210093, jiangsu, peoples r china. chinese acad sci, int ctr mat phys, shenyang, peoples r china.;liu, jm (reprint author), nanjing univ, solid state microstruct lab, dept phys, hankou rd 22, nanjing 210093, jiangsu, peoples r china;liujm@nju.edu.cn
关键词	Magnetic Polaron Electron Tunneling Magnetotransport Monte-carlo Simulation Mixed-valence Manganites Double-exchange Giant-magnetoresistance Transition
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WOS记录号	WOS:000223121500041
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35587
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	K. F. Wang,S. Dong,J. M. Liu. Role of magnetic polarons in magnetotransport of phase-separated electron systems: Monte-Carlo simulation[J]. Computational Materials Science,2004,30(3-4):453-460.
APA	K. F. Wang,S. Dong,&J. M. Liu.(2004).Role of magnetic polarons in magnetotransport of phase-separated electron systems: Monte-Carlo simulation.Computational Materials Science,30(3-4),453-460.
MLA	K. F. Wang,et al."Role of magnetic polarons in magnetotransport of phase-separated electron systems: Monte-Carlo simulation".Computational Materials Science 30.3-4(2004):453-460.