Domain wall depinning in hard-soft composites

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	Domain wall depinning in hard-soft composites
	Chui, ST; Yu, Y; Chui, ST , Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
刊名	PHYSICAL REVIEW B
	2001
卷号	63 期号:14 页码:-
关键词	2-phase Magnets Multilayers
ISSN号	0163-1829
英文摘要	We study the optimization of the energy product of nanocomposites of hard magnetic material with soft magnetic material. In bulk magnets, nucleation centers exist on surfaces and along grain boundaries. The coercive field of the composite may not be the intrinsic coherent rotation nucleation field H-n but may be the depinning field H-d of domain walls. We study H-d as well as H-n by finite-temperature Monte Carlo simulation for a model of the composites. The dependence of H-d On the amount of the soft phase is different from that of H-n. As the amount of the soft material is increased, the depinning field increases, exhibits a maximum, and then decreases whereas H-n always decreases. H-d is much smaller than H-n. The optimum design parameters and the optimum energy product are different in the two cases.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000168059800020
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12788]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Chui, ST , Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
推荐引用方式 GB/T 7714	Chui, ST,Yu, Y,Chui, ST , Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.. Domain wall depinning in hard-soft composites[J]. PHYSICAL REVIEW B,2001,63(14):-.
APA	Chui, ST,Yu, Y,&Chui, ST , Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA..(2001).Domain wall depinning in hard-soft composites.PHYSICAL REVIEW B,63(14),-.
MLA	Chui, ST,et al."Domain wall depinning in hard-soft composites".PHYSICAL REVIEW B 63.14(2001):-.