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Behavior of μMAG standard problem No. 2 in the small particle limit (2000)

Donahue, M. J. ; Porter, D. G. ; McMichael, R. D.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 87 (2000), S. 5520-5522

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: For a uniformly magnetized rectangular particle with dimensions in the ratio 5 : 1 : 0.1, the coercive and switching fields in the (1,1,1) direction are determined to be Hc/Ms=0.057069478 and Hs/Ms=0.057142805. Previous micromagnetic computations of coercive and switching fields that did not approach these values for small particles are analyzed. It is shown that the disagreement was primarily due to a disparity in the method of calculating demagnetization energy. Corrected simulations are shown to agree with analytically determined values. © 2000 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.373391

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