Observational analysis investigates the relationship between domain wall geometry and coercive forces, suggesting ways to optimize coercivity.
Competition between the local defect coercivity and the global magnetostatic positioning of domain walls makes it possible to use them against each other if it is desirable to diminish (optimize) the coercivity and to decrease hysteresis losses. Correlation between the coercive properties of a soft magnetic material and the geometry of its domain structure was investigated. A decreasing linear dependence of the domain wall coercive field on the increasing position-stiffness of the walls was measured. The coercive properties of the soft magnetic material and the ways of influencing them through engineering of the domain structure geometry are discussed.
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Vértesy et al. (1995) studied this question.
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