Exchange bias and phase transformation in alpha-Fe(2)O(3)/Fe(3)O(4) nanocomposites

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	Exchange bias and phase transformation in alpha-Fe(2)O(3)/Fe(3)O(4) nanocomposites
	X. H. Liu; W. B. Cui; W. Liu; X. G. Zhao; D. Li; Z. D. Zhang
	2009
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	475 期号:1-2 页码:42-45
摘要	The phase transformation and magnetic properties of antiferromagnetic (AFM) alpha-Fe(2)O(3)/ferromagnetic (FI) Fe(3)O(4) nanocomposites have been investigated. A large negative exchange bias field is observed for alpha-Fe(2)O(3) powders milled for 6 h, due to the existence of the exchange interaction between AFM alpha-Fe(2)O(3) and FI Fe(3)O(4). In addition, an obvious exchange bias is found in powders with either AFM alpha-Fe(2)O(3) or FI Fe(3)O(4) single phase coated by an amorphous layer, indicating that the interfacial status and domain structure may play very important roles on the exchange interaction between the grains. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[liu, w.] chinese acad sci, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. chinese acad sci, inst met res, shenyang 110016, peoples r china.;liu, w (reprint author), chinese acad sci, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;wliu@imr.ac.cn
关键词	Phase Transformation Exchange Bias Milling Spin-glass Behavior Magnetic-properties Nanoparticles Temperature Coercivity Disorder Enhancement Films Nio
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32125
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. H. Liu,W. B. Cui,W. Liu,et al. Exchange bias and phase transformation in alpha-Fe(2)O(3)/Fe(3)O(4) nanocomposites[J]. Journal of Alloys and Compounds,2009,475(1-2):42-45.
APA	X. H. Liu,W. B. Cui,W. Liu,X. G. Zhao,D. Li,&Z. D. Zhang.(2009).Exchange bias and phase transformation in alpha-Fe(2)O(3)/Fe(3)O(4) nanocomposites.Journal of Alloys and Compounds,475(1-2),42-45.
MLA	X. H. Liu,et al."Exchange bias and phase transformation in alpha-Fe(2)O(3)/Fe(3)O(4) nanocomposites".Journal of Alloys and Compounds 475.1-2(2009):42-45.