Micromagnetic theory of the pinning of domain walls at phase boundaries
作者： H Kronmüller , D Goll
DOI: 10.1016/S0921-4526(02)01113-4
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摘要: Abstract Planar phase boundaries in hard-magnetic materials are found to act as strong repulsive or trapping barriers for the displacement of domain walls if magnetocrystalline anisotropies two phases different from each other. On basis continuum theory micromagnetism coercive field is determined under general conditions material parameters (spontaneous magnetization J s , anisotropy K 1 exchange constant A ). The results applied analyze three-phase nanocrystalline Sm 2 Co 17 -based magnets.
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