In this work ferromagnetic resonance (FMR) of metallic glasses in microwires of composition (FexCo1-x)72.5 Si12.5 B15 has been measured. The ferromagnetic resonance frequency of amorphous magnetic microwires has been obtained from power absorption measurements in the microwave frequency range. The experimental technique employed here is the replacement of the dielectric of a coaxial transmission line by the sample to be measured. From the evolution of the resonance frequency with a dc applied magnetic field, the anisotropy field of the microwires has been deduced, and successfully compared to that obtained from quasi-static hysteresis loops.
Origin
University Politecica De Valencia, Spain
Journal Title
Bol Soc Esp Ceram Vidrio 39 3 2000 367-370
Sector
Special Glass
Class
S 2026