The authors simulated magnetization reversal in high aspect ratio, rectangular permalloy particles in the thickness range 125 AA to 1500 AA. There is significant variation of behaviour over this range. Trends for coercivity, hysteresis loops, reversal mechanism, and remanent states, especially as they are influenced by the increased three-dimensionality of the particle, are presented. Special attention is given to the formation of a low moment state when an in-plane, transverse field is applied.>
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Koehler et al. (1991) studied this question.
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