Effect of uniaxial long‐range exchange interaction on the properties of surface spin waves in a Heisenberg ferromagnet

Abstract The low‐ and high‐frequency surface states in a single‐magnon spectrum of the Heisenberg ferromagnet with uniaxial exchange interaction of the long‐range type are studied. The energies and damping decrements of surface spin waves and the surface projected spectral densities of magnon states are obtained. It is found that the considered anisotropic interaction results in new formation conditions of the surface spin waves and essentially affects their characteristics.

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