Magnetostatic spin waves in (111)-oriented thin garnet films with combined cubic and uniaxial anisotropies |
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| Institution: | 2. St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University), St. Petersburg, Russia;3. Institute of Physics, University of Freiburg, Freiburg, Germany;4. Institut Charles Sadron, Université de Strasbourg and CNRS, Strasbourg Cedex, France;5. Laboratory of Physics, Lappeenranta University of Technology, Lappeenranta, Finland |
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| Abstract: | The magnetostatic spin wave theory in (111)-oriented ferromagnetic films characterized by cubic and uniaxial anisotropies (CUA) is developed. The theory is discussed for two cases when the magnetization vector is perpendicular or parallel to the sample plane. In CUA films, instead of the usually discussed magnetostatic surface waves known for the isotropic case, a new type of surface waves was found with the complex wavevector component normal to the surface.It is shown that for the pure yttrium-iron-garnet film the influence of the CUA effects on the dispersion characteristics of the surface waves is not very substantial. |
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