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Bulk Spin-Wave Filtration at the Interface of Two Uniaxial Ferromagnetic Media

Author(s): Yu.I. Gorobets | S.O. Reshetnyak

Journal: Journal of Nano- and Electronic Physics
ISSN 2077-6772

Volume: 4;
Issue: 2;
Start page: 02003-1;
Date: 2012;
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Keywords: Spin wave | Filtration | Ferromagnetic medium | Magnetic field | Anisotropy.

In this paper the dependencies are obtained of spin wave reflection coefficients on frequency and external magnetic field for ferromagnetic structure in the exchange mode, when the influence of magnetostatic part of energy is neglected as compared with exchange one. It is shown that ferrogarnet structure, having very small damping parameter, is good for high-quality filtration of spin waves because it gives large change of reflection coefficient in small intervals of frequencies and external magnetic fields.
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