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Effect of Relaxation on Spin Wave Resonance in Thin Ferromagnetic Films
Author(s) -
Chartoryzhskii D. N.,
Kaliniko A.
Publication year - 1974
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.2220640126
Subject(s) - ferromagnetic resonance , condensed matter physics , spin wave , resonance (particle physics) , dipole , magnetization , ferromagnetism , relaxation (psychology) , ferrite (magnet) , microwave , materials science , spin polarization , physics , magnetic field , atomic physics , electron , quantum mechanics , psychology , social psychology , composite material
Forced nonuniform oscillations of the magnetic moment in a ferromagnetic film are considered, taking into account relaxation, dipole, and exchange interactions under various boundary conditions for the magnetization. Equations of the resonance frequencies of the spin wave oscillations are obtained, taking into account the losses for normally and tangentially magnetized films. Some criteria of the diecernibility of the resonance absorption maxima depending on spin wave resonance phenomena have been found. The concept of the film critical thickness L, has been introduced. The film properties at L > L c are shown to have practically no differences from those of bulk ferrite slabs on microwave frequencies.