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Chui, ST; Yu, Y; Chui, ST , Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
Domain wall depinning in hard-soft composites
Source PublicationPHYSICAL REVIEW B
Keyword2-phase Magnets Multilayers
AbstractWe 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.
2001
ISSN0163-1829
Volume63Issue:14Pages:-
Subject AreaPhysics
Indexed BySCI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12788
Collection理论物理所科研产出_SCI论文
Corresponding AuthorChui, ST , Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
Recommended Citation
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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