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Graded permanent magnets
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10.1063/1.3068622
/content/aip/journal/jap/105/7/10.1063/1.3068622
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/7/10.1063/1.3068622
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Cylindrical particles with inhomogeneous magnetization profiles: (a) hard-soft composite, (b) graded interface, and (c) semihard magnet. Dark and bright regions correspond to high and low anisotropies, respectively.

Image of FIG. 2.
FIG. 2.

Spatial extension of nucleation mode, illustrating the transition from coherent rotation to localized nucleation. The limit of Stoner–Wohlfarth reversal (coherent rotation) corresponds to Fig. 1(c) but is also realized in very small particles irrespective of anisotropy profile.

Image of FIG. 3.
FIG. 3.

Nucleation field for several concentration profiles . The three profiles have a common average anisotropy but different nucleation fields. The cases shown in this figure correspond to Fig. 1.

Image of FIG. 4.
FIG. 4.

Easy-axis magnetism in exchange-coupled easy-plane magnets (HMSS magnets). Two nanoscale easy-plane magnets with are exchange coupled at an angle of 90° (left), which yields an easy axis magnet with .

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/content/aip/journal/jap/105/7/10.1063/1.3068622
2009-03-16
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Graded permanent magnets
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/7/10.1063/1.3068622
10.1063/1.3068622
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