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Spin Waves in a Bilayer with Biquadratic Interlayer Coupling
Author(s) -
Barnas J.
Publication year - 1997
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 - 10.1002/1521-3951(199709)203:1<221::aid-pssb221>3.0.co;2-i
Subject(s) - condensed matter physics , ferromagnetism , bilayer , perpendicular , limit (mathematics) , spin wave , coupling (piping) , spin (aerodynamics) , plane (geometry) , materials science , physics , chemistry , mathematics , thermodynamics , geometry , mathematical analysis , biochemistry , membrane , metallurgy
Linear spin waves in layered structures consisting of two ferromagnetic films coupled at the interface by a biquadratic exchange interaction are analysed theoretically within the localized spin model and in the low‐temperature limit. Magnetizations of both films are assumed to be parallel to the film plane, but perpendicular one to another. The limit of two semi‐infinite ferromagnets is also considered. In both cases interfacial modes have been found.