FMR in some amorphous Re - 3-d transition metal films

Abstract
Ferrimagnetic Resonance (FMR) and vibrating sample magnetometer (VSM) measurements were made on amorphous GdCo3 and Gd‐, Ho‐, Tb‐ and DyFe2 for temperatures from 90 to 500K. For Gd alloys, the T dependence of the linewidth is in general agreement with that predicted for a T independence Landau‐Lifshitz damping parameter of ∠198/s. Ho‐ and TbFe2 and to a lesser degree the Gd alloys show inconsistencies between the FMR and VSM values for the magnetization.

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