Surface spin waves in spatially inhomogeneous films ferrospinels


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Abstract

Considered are the peculiarities in the amplitude - frequency characteristics of the type layout of the delay line in Ref magnetized films of manganese and magnesium-manganese ferrospinels. Calculated wave number, phase and group velocities, attenuation coefficients of magnetostatic waves. The overall effect observed for films of ferrospinels is «oscillations in the transmission» in the frequency response of the magnetostatic waves with changing frequency. Changes in frequency response associated with the effects of resonant interaction of dipole and exchange waves. It is shown that the depth and the number of exchange minimums in the quartermaster films of different composition depends on the magnitude of the exchange interaction, surface anisotropy constants and parameters of the spin pinning at the free surface and interlayer boundary.

About the authors

G.S. Badrtdinov

Самарский государственный технический университет

Author for correspondence.
Email: gregori2000@mail.ru

L.A. Mitlina

Самарский государственный технический университет

Email: physics@samgtu.ru

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Copyright (c) 2016 Badrtdinov G., Mitlina L.

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