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|Author(s):||Michael J. Donahue; Donald G. Porter; Robert D. McMichael; J Eicke;|
|Title:||Behavior of MAG Standard Problem No. 2 in the Small Particle Limit|
|Published:||May 01, 2000|
|Abstract:||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.|
|Citation:||Journal of Applied Physics|
|Pages:||pp. 5520 - 5522|
|Keywords:||micromagnetic modeling,small particle limit,standard problems|
|PDF version:||Click here to retrieve PDF version of paper (54KB)|