Abstract
The magnetic behaviour and the frequency dependence of the initial complex permeability are analysed in very soft ferromagnetic Co- and Fe-based nanostructured alloys obtained by thermal treatments of amorphous ribbons. The spectra of the real and imaginary parts of the permeability show the typical features of domain wall relaxation and are characterized by a continuous distribution of relaxation times. In the framework of the random anisotropy model, the spread in the values of the relaxation frequency reflects a dispersion of the effective anisotropy constants and, in turn, a nonuniform distribution of the grain diameters. The results well agree with those deduced by the distribution function of the anisotropy fields and by the scanning and/or transmission electron microscopy analysis.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
