Ferromagnetic resonance studies in Fe/Ti multilayers

The magnetic properties of sputtered Fe/Ti multilayers are presented. The magnetization results reveal an interdiffusion at the Fe/Ti interfaces. The FMR spectra were obtained as a function of orientation of the applied magnetic field from in-plane to out-of-plane and were fitted theoretically to determine the magnetic anisotropy. We also observed one or two weak peaks at the high-field-side of the uniform resonance mode, which we attributed to a surface mode. Spin-waves resonance modes were observed in the Fe/Ti multilayers (tFe=40 and 60 A) and the effective exchange constants were determined