Abstract

We have calculated the FMR line shape for magnetic multilayer structures of alternating iron and iron-alloy layers. The model assumes abrupt interfaces and that spins on adjacent layers are ferromagnetically coupled with an exchange constant A₁₂. The surface magnetic anisotropy fields are set to zero in our calculations. As A₁₂ is increased, satellite lines in the surface impedance split off from the ferromagnetic resonance main lines of the component materials. The number of satellites is one more than the number of layered pairs. The position and strength of these lines is found to be dependent on the relative layer thicknesses as well as the interlayer exchange coupling.

Notes

Originally published in Physical Review B 36, 8574-8581 (1987). doi 10.1103/PhysRevB36.8574 (http://link.aps.org/doi/10.1103/PhysRevB36.8574).

Keywords

magnetic multilayer structures, FMR, A₁₂

Subject Categories

Ferromagnetic resonance, Iron alloys, Anisotropy

Disciplines

Electromagnetics and photonics

Publisher

American Physical Society

Publication Date

12-1-1987

Rights Information

Copyright 1987 American Physical Society

Rights Holder

American Physical Society

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