NDLI: Improvement of Stepped Magnetoimpedance Properties by Controlling the Demagnetizing Effect

Content Provider	IEEE Xplore Digital Library
Author	Kikuchi, H. Kamata, S. Oe, S. Nakai, T. Hashi, S. Ishiyama, K.
Copyright Year	1965
Abstract	We investigated the effects of controlling the distribution of the demagnetizing field on the impedance profiles of stepped giant magnetoimpedance elements. Elements with an ellipsoidal shape were adopted to improve the properties in discontinuous impedance jumps, as the demagnetizing field is expected to be uniform in an ellipsoid. The impedance jumps in the ellipsoidal elements became sharper and more abrupt, and the height ratio improved by 3-4 times compared with the ratio of the conventional rectangular elements. The observed domain structures propagated from the edge to the center in the rectangular elements, which is explained on the basis of the calculated distribution of the demagnetizing factor. On the other hand, all the domains appeared or disappeared in the ellipsoidal elements, indicating that the demagnetizing factor is nearly constant in the elements. The results contribute to a miniaturization of the element in order to keep the abrupt discontinuous impedance.
Sponsorship	IEEE Magnetics Society
Starting Page	1
Ending Page	4
Page Count	4
File Size	2786852
File Format	PDF
ISSN	00189464
Volume Number	51
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impedance Demagnetization Magnetic domains Amorphous magnetic materials Magnetic fields Magnetic hysteresis discontinuous jump magnetoimpedance stepped impedance change demagnetizing distribution Demagnetizing distribution magnetoimpedance (MI)
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Existence of Three Stable States of Magnetic Domain for the Stepped Giant Magnetoimpedance Element and Proposal for Sensor With Memory Function

Effects of the Edge Shape of the Elements on the Properties of Stepped Giant Magnetoimpedance

Impedance Variation with Subjecting to Normal Field for the Stepped Giant Magnetoimpedance Element

Simulation of Giant Magnetic-Impedance Effect in Co-Based Amorphous Films With Demagnetizing Field

Influences of Extra Magnets on Giant Magnetoimpedance Effect in Amorphous Wires

A Numerical Investigation of Neel Wall Effects in Amorphous MI Ribbons

The frequency and stress dependence of giant magnetoimpedance in amorphous microwires

Observation of the Magnetic Properties According to Changes in the Shape of Thin-Film Giant Magnetoimpedance Sensor

Magnetic Dynamic Interaction in Amorphous Microwire Array

Improvement of Stepped Magnetoimpedance Properties by Controlling the Demagnetizing Effect

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