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Microscopic theory of spin‐wave resonance in ferromagnetic films with surface‐region hihomogeneities
Author(s) -
Wachniewski 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.2220770132
Subject(s) - ferromagnetic resonance , hamiltonian (control theory) , spin wave , ferromagnetism , perturbation (astronomy) , condensed matter physics , resonance (particle physics) , physics , perturbation theory (quantum mechanics) , surface (topology) , surface wave , simple (philosophy) , quantum mechanics , mathematics , optics , magnetic field , geometry , magnetization , philosophy , epistemology , mathematical optimization
A new general approach to spin wave resonance in ferromagnetic films with surface‐region inhomogeneities is proposed. This approach is based on Wallace's perturbation method with a zeroth‐order Hamiltonian corresponding to surface inhomogeneity model. Simple formulae for energies and intensities of resonance peaks are given and numerical examples illustrate the application of the method.