Abstract
The ferromagnetic resonance-line shapes, fields, and intensities of exchange coupled magnetic multilayers are calculated as a function of exchange coupling and number of layers. We find that the number of magnetic excitations equals the number of layer pairs that make up the layered structure. The magnetic dispersion of these excitations is easily calculable from the theoretical formulation developed earlier. It is suggested that the multitude of ferromagnetic resonance lines in magnetic superlattices observed experimentally elsewhere may be explained in terms of an earlier calculation involving surface magnetic anisotropy fields only.
Keywords
exchange coupled magnetic multilayers, magnetic excitations, layer pairs, FMR, magnetic dispersion, superlattices
Subject Categories
Ferromagnetic resonance
Disciplines
Electromagnetics and photonics
Publisher
American Physical Society
Publication Date
2-1-1988
Rights Information
Copyright 1988 American Physical Society
Rights Holder
American Physical Society
Permanent URL
Recommended Citation
Vittoria, C., "Ferromagnetic-resonance of exchange-coupled magnetic layers" (1988). Electrical and Computer Engineering Faculty Publications. Paper 50. http://hdl.handle.net/2047/d20002221
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Notes
Originally published in Physical Review B 37, 2387-2390 (1988). doi 10.1103/PhysRevB37.2387 (http://link.aps.org/doi/10.1103/PhysRevB37.2387).