Spin wave resonance in single-crystal nickel films

Abstract

The room-temperature observation of extensive spin wave resonance spectra in (100) single-crystal nickel films is reported including the presence of surface spin wave modes. The variation of the spectrum with the angle between the applied magnetic field and the film normal is interpreted semiquantitatively in terms of Puszkarski's surface inhomogeneity models (1972). The value of the exchange constant D, is found to be 47+or-5*10-30 erg cm-2 for the applied field normal to the film surface.