Affiliation:
1. Department of Physics, Pedagogical Institute, Irkutsk State University, 664003 Irkutsk, Russia
Abstract
The results of a computer simulation and experimental study of the magnetoimpedance effect (MI) in amorphous Co68.5Fe4.0Si15.0B12.5 and Co68.6Fe3.9Mo3.0Si12.0B12.5 ribbons in the ac frequency range from 0.01 to 100 MHz are presented. It was found that the maximum MI value exceeds 200%, which may be of interest in the development of magnetic field sensors. It is also shown that practically significant characteristics of the MI response strongly depend on the ac frequency, which is due to the inhomogeneous distribution of magnetic properties over the ribbon cross section. This distribution was studied using magnetoimpedance tomography based on the analysis of the experimental dependences of the reduced impedance on the ac frequency.
Funder
Russian Science Foundation
Subject
Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry
Reference44 articles.
1. Sensitive field- and frequency-dependent impedance spectra of amorphous FeCoSiB wire and ribbon (invited);Beach;J. Appl. Phys.,1994
2. Kurlyandskaya, G.V., Lezama, L., Pasynkova, A.A., Volchkov, S.O., Lukshina, V.A., Larrañaga, A., Dmitrieva, N.V., Timofeeva, A.V., and Orue, I. (2022). Amorphous FeCoCrSiB Ribbons with Tailored Anisotropy for the Development of Magnetic Elements for High Frequency Applications. Materials, 15.
3. High-frequency GMI hysteresis effect analysis by first-order reversal curve (FORC) method;Arzuza;J. Magn. Magn. Mater.,2021
4. Magnetoimpedance effect in zero magnetostriction nanocrystalline Fe73.5Cu1Nb3Si16.5B6 ribbons;Tejedor;J. Magn. Magn. Mater.,1998
5. Stress-MI and domain studies in Co-based nanocrystalline ribbons;Dwevedi;J. Magn. Magn. Mater.,2011