Abstract
Spin wave resonances in thin Permalloy films were measured as a function of the angle between the external field and the film plane. In the case of thin films 600A in thickness, resonance can be observed in the whole range of the angle. In the case of thicker films, some modes disappear at different angles which are close to 90° for the higher modes. The disappearance is closely connected with the broadening of the line width. This broadening is more marked for the higher modes, and can be well explained by a theory in which the Gilbert damping and the static equilibrium condition are taken into consideration.
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