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Theory of the Single Ion Magnetocrystalline Anisotropy of 3d Ions
Author(s) -
Xu You,
Yang GuiLing,
Chu DaPing,
Zhai HongRu
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.2221570221
Subject(s) - magnetocrystalline anisotropy , ion , anisotropy , single crystal , materials science , symmetry (geometry) , ferrite (magnet) , crystal (programming language) , magnetic anisotropy , condensed matter physics , chemistry , crystallography , magnetic field , physics , magnetization , geometry , optics , programming language , organic chemistry , mathematics , quantum mechanics , computer science , composite material
Methods for calculating the single ion magnetocrystalline anisotropy of 3d ions in the crystal field with threefold axis or higher symmetry and lower symmetry are given. Using these methods, the contributions of Fe 3+ ions at all the five crystal sites of Ba‐ferrite (BaM) to the magnetocrystalline anisotropy constants and their temperature dependence are calculated. Also calculated is the single ion anisotropy of the Co 2+ ion substituting the Fe 3+ ion at the 12k site. The results agree well with experiments.