Angular dependence of the main resonance field in the spin wave spectra of single-crystal nickel films

Abstract

Measurements of the position of the main resonance in the spin wave spectra of single-crystal nickel films at 17 GHz have been performed, at room temperature, as a function of angle between the applied magnetic field and the film normal. The analysis shows that the general behaviour of the angular dependence of the resonance field is due to the angular variation in the demagnetizing field. Additional information concerning the general character of the resonance field measured at oblique angles is also discussed. Theoretical curves obtained from calculations of the resonance field are in good agreement with the experimental observations.