Dispersion Characteristics of Magnetostatic Surface Waves
in a Two-Layer Ferromagnetic Film

V. I. Zubkov, V. A. Epanechnikov, and V. I. Shcheglov

Received January 31, 2006

Abstract—The dispersion characteristics (dispersion and isofrequency curves and dispersion surfaces) of mag-
netostatic surface waves propagating in an arbitrary direction in a two-layer ferromagnetic film are investigated.
The shapes of these curves and surfaces are studied at different ratios between the saturation magnetizations of
the ferromagnetic layers, and the conditions for existence of external waves (always forward) and internal
waves (forward and backward or only forward) are determined.

PACS numbers: 85.70.Ec, 75.70.-i

DOI: 10.1134/S1064226907020076

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