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Stray‐Field‐Free Magnetization Configurations
Author(s) -
Hubert A.
Publication year - 1969
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19690320204
Subject(s) - demagnetizing field , field (mathematics) , condensed matter physics , magnetization , physics , micromagnetics , magnetic field , symmetry (geometry) , geometry , mathematics , quantum mechanics , pure mathematics
The concept of stray‐field‐free micromagnetic configurations in applied to Bloch‐ and Néel‐walls, to stripe domains, and to the ripple structure in thin magnetic films. We propose a new structure of Bloch‐walls with a lower energy than the most general classical Bloch‐walls as calculated by LaBonte. In general a stray‐field‐free configuration has a lower symmetry than the simpler structures considered previously. It is concluded that the real structure, if not completely stray‐field‐free, should have at least the same symmetry as a possible stray‐field‐free solution. The significance of Brown's equations, which in general cannot be satisfied without admitting stray‐fields, is analysed with regard to the micromagnetic boundary condition.