Direction dependence of microwave ferromagnetic resonance transmission along the surface of Fe-Si-B foils

Microwave transmission along the surface of metal-metalloid foils was examined with a ferromagnetic resonance transmission spectrometer, and a dependence on the static and microwave magnetic field directions was observed. The resonant transmission of microwave radiation depended strongly on the angle between the direction of the static magnetic field and that of the fine grooves running along the surface of the sample. The transmission intensity was a maximum when the static magnetic field was parallel to the grooves. It also depended on the relation between the directions of the static and the microwave magnetic fields