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Crystal‐Field‐Induced Surface Anisotropy in Thin Magnetic Films
Author(s) -
Duda A.
Publication year - 1976
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.2220740232
Subject(s) - anisotropy , condensed matter physics , hamiltonian (control theory) , ion , crystal (programming language) , materials science , magnetic anisotropy , magnetic field , symmetry (geometry) , field (mathematics) , spin wave , physics , magnetization , optics , ferromagnetism , quantum mechanics , geometry , mathematical optimization , mathematics , computer science , pure mathematics , programming language
The general form of the spin Hamiltonian for the (001), (111), and (110) surfaces of cubic crystals is derived on the basis of symmetry requirements. The resulting angular dependence of the spin‐wave spectrum is considered. For rare‐earth ions, the surface anisotropy is shown to be related with the crystal field parameters.