Asymmetric Magnetoimpedance in Ferromagnetic Biphase Films: Effects of Magnetostatic Coupling and Number of Layers

Asymmetric Magnetoimpedance in Ferromagnetic Biphase Films: Effects of Magnetostatic Coupling and... A model to describe the asymmetric magnetoimpedance in biphase soft/hard magnetic multilayered film is proposed. It is shown that a magnetostatic coupling changes the magnetization distribution in soft magnetic layers and leads to asymmetry in the field dependence of the impedance. The influence of the number of the repetitions of the base three-layered film structure having the soft and hard magnetic layers separated by non-ferromagnetic metallic spacer on the asymmetric magnetoimpedance is analyzed. The results of modelling describe main features of the asymmetric magnetoimpedance effect observed in bimagnetic multilayered films. The analysis shows that the multilayers may be attractive for use in miniature sensors of a weak magnetic field. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Superconductivity and Novel Magnetism Springer Journals

Asymmetric Magnetoimpedance in Ferromagnetic Biphase Films: Effects of Magnetostatic Coupling and Number of Layers

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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media New York
Subject
Physics; Strongly Correlated Systems, Superconductivity; Magnetism, Magnetic Materials; Condensed Matter Physics; Characterization and Evaluation of Materials
ISSN
1557-1939
eISSN
1557-1947
D.O.I.
10.1007/s10948-017-4069-6
Publisher site
See Article on Publisher Site

Abstract

A model to describe the asymmetric magnetoimpedance in biphase soft/hard magnetic multilayered film is proposed. It is shown that a magnetostatic coupling changes the magnetization distribution in soft magnetic layers and leads to asymmetry in the field dependence of the impedance. The influence of the number of the repetitions of the base three-layered film structure having the soft and hard magnetic layers separated by non-ferromagnetic metallic spacer on the asymmetric magnetoimpedance is analyzed. The results of modelling describe main features of the asymmetric magnetoimpedance effect observed in bimagnetic multilayered films. The analysis shows that the multilayers may be attractive for use in miniature sensors of a weak magnetic field.

Journal

Journal of Superconductivity and Novel MagnetismSpringer Journals

Published: Mar 30, 2017

References

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