Amorphous ferromagnetic microwire in the microwave cavity. Ferromagnetic resonance and absorption

Abstract Ferromagnetic resonance (FMR) in amorphous ferromagnetic microwire in glass coating (AMW) was investigated. Two modes of FMR, caused by connections of precession of magnetization and natural electromagnetic oscillations of a sample as a microwave resonator was found out. It was shown that the excitation of FMR was caused by microwave magnetic field of induction currents connected to electrical component of fallen electromagnetic radiation. The magnetic constants of Fe 15 Co 60 B 10 Si 15 microwire were determined at room temperature. All observable features of ferromagnetic resonance could be described in the frameworks of the used model.