Exchange bias effect in NiO/NiFe(2)O(4) nanocomposites

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	Exchange bias effect in NiO/NiFe(2)O(4) nanocomposites
	W. J. Gong; W. Liu; D. Li; S. Guo; X. H. Liu; J. N. Feng; B. Li; X. G. Zhao; Z. D. Zhang
	2011
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	109 期号:7
摘要	A series of (100-x)NiO/(x)NiFe(2)O(4) nanocomposites (x 0, 2.5, 5, 8.3, 12.5, 25) synthesized by a chemical coprecipitation method have been investigated. The exchange bias field H(E) of the nanocomposites reaches a maximum at x = 2.5, and then decreases with increasing x. The decrease of H(E) is attributed to the formation of isolated ferrimagnetic NiFe(2)O(4) clusters, which is confirmed by observation with the use of high resolution transmission electron microscopy. The temperature dependence of H(E) and the coercivity H(C) for pure NiO is different from those with other samples, which is due to the exchange coupling between the uncompensated antiferromagnetic core and disordered surface shell of NiO nanoparticles. (C) 2011 American Institute of Physics. [doi:10.1063/1.3544505]
部门归属	[liu, w.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, inst met res, shenyang 110016, peoples r china.;liu, w (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;wliu@imr.ac.cn
关键词	Nanoparticles 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/321006/30352
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. J. Gong,W. Liu,D. Li,et al. Exchange bias effect in NiO/NiFe(2)O(4) nanocomposites[J]. Journal of Applied Physics,2011,109(7).
APA	W. J. Gong.,W. Liu.,D. Li.,S. Guo.,X. H. Liu.,...&Z. D. Zhang.(2011).Exchange bias effect in NiO/NiFe(2)O(4) nanocomposites.Journal of Applied Physics,109(7).
MLA	W. J. Gong,et al."Exchange bias effect in NiO/NiFe(2)O(4) nanocomposites".Journal of Applied Physics 109.7(2011).