ЕСТЕСТВЕННЫЙ ФЕРРОМАГНИТНЫЙ РЕЗОНАНС В МИКРОПРОВОДЕ И ЕГО ПРИМЕНЕНИЯ

Abstract

The natural ferromagnetic resonance (nFMR) in cast glass-coated amorphous magnetic micro and nanowires has been studied theoretically and experimentally. The nFMR reveals large residual stresses appearing in the microwire core in the course of casting. These stresses, together with the magnetostriction, determine the magnetoelastic anisotropy. Beside the residual internal stresses, the nFMR frequency is influenced by external stresses applied to the microwire or to the composite containing the latter (the so-called stress effect). The dependence of the nFMR frequency on the deformation and external stresses for the microwires is proposed to be used in the distant diagnostics of dangerous deformations in medicine.