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Calculation of the magnetic energy barrier in nanostructured cells of synthetic ferrimagnets
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10.1063/1.3253726
/content/aip/journal/jap/106/9/10.1063/1.3253726
http://aip.metastore.ingenta.com/content/aip/journal/jap/106/9/10.1063/1.3253726
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Top view and (b) cross-sectional view of the synthetic ferrimagnets investigated in this study. The definition of the - and -axes is also shown in (a).

Image of FIG. 2.
FIG. 2.

(a) loops calculated by micromagnetic simulation at two different values: (a) and (b) . The following parameters were used in the calculation: , (rectangle), , , , and . The critical fields calculated by using the field sweep procedure are indicated by solid arrows. The critical fields can also be calculated from the magnetostatic fields obtained in this study by using Eqs. (2)–(5), and these results are indicated by empty arrows.

Image of FIG. 3.
FIG. 3.

Results for (in where ) as a function of calculated in this study without using the simplifying assumptions (solid circles). Also shown is a similar set of results obtained by using the simplifying assumptions (solid squares). The results shown in (a) and (b) were for (rectangle) and (ellipse), respectively. The other parameters used in the calculation are , , , , and .

Image of FIG. 4.
FIG. 4.

A contour diagram showing the value of (in where ) as a function of and . The results were calculated without using the simplifying assumptions. The following parameters were used in the calculation: , , , , and .

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/content/aip/journal/jap/106/9/10.1063/1.3253726
2009-11-11
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Calculation of the magnetic energy barrier in nanostructured cells of synthetic ferrimagnets
http://aip.metastore.ingenta.com/content/aip/journal/jap/106/9/10.1063/1.3253726
10.1063/1.3253726
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