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Bloch Walls in Magnetostrictive Metallic Glasses
Author(s) -
Kraus L.
Publication year - 1990
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.2221610240
Subject(s) - magnetostriction , condensed matter physics , anisotropy , materials science , internal stress , magnetic anisotropy , amorphous metal , amorphous solid , anisotropy energy , orthorhombic crystal system , stress (linguistics) , magnetization , physics , composite material , magnetic field , optics , diffraction , alloy , crystallography , chemistry , linguistics , philosophy , quantum mechanics
One‐dimensional Bloch walls in weakly anisotropic magnetostrictive media are investigated theoretically. It is shown that there are two effects of magnetoelastic coupling on the walls: 1. magnetic anisotropy induced by external stress and 2. internal stress of the wall required by compatibility. The resulting magnetic anisotropy is generally of orthorhombic symmetry implying that the wall energy depends on the orientation of the wall. The internal stress of the wall can be a determining factor for the energy and the width of the walls in weakly anisotropic and highly magnetostrictive amorphous alloys.