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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.
2001
发表期刊PHYSICAL REVIEW B
ISSN0163-1829
卷号63期号:14页码:-
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.
部门归属Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词2-phase Magnets Multilayers
学科领域Physics
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收录类别SCI
WOS记录号WOS:000168059800020
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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12788
专题理论物理所SCI论文
通讯作者Chui, ST , Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
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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):-.
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