Abstract

The magnetic polaritons localized at the magnetic impurity layer in magnetic superlattice composed of the alternating ferromagnetic and nonmagnetic layers are investigated in the framework of the electromagnetic wave theory in the Voigt geometry. The general dispersion relation for localized magnetic polaritons is derived in the long-wavelength limit. The dispersion curves and frequency region of the exsistence of the localized magnetic polaritons for different parameters of the superlattices and magnetic impurities are calculated numerically and analysed.KeywordsMagnetic polaritonmagnetic superlatticemagnetic impurity

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