Large Barkhausen jump in Fe/Co laminated films

When torsional stress is applied to a Fe–Co–V wire and a magnetic field is applied in the longitudinal direction of the wire, a pulse voltage is generated in the search coil wound around the wire due to a large Barkhausen jump. This pulse voltage has the characteristic that a pulse waveform with a c...

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Main Authors: Norimichi Watanabe, Atsushi Matsuo, Susumu Abe, Akiyoshi Nakayama
Format: Article
Language:English
Published: AIP Publishing LLC 2025-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0267117
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author Norimichi Watanabe
Atsushi Matsuo
Susumu Abe
Akiyoshi Nakayama
author_facet Norimichi Watanabe
Atsushi Matsuo
Susumu Abe
Akiyoshi Nakayama
author_sort Norimichi Watanabe
collection DOAJ
description When torsional stress is applied to a Fe–Co–V wire and a magnetic field is applied in the longitudinal direction of the wire, a pulse voltage is generated in the search coil wound around the wire due to a large Barkhausen jump. This pulse voltage has the characteristic that a pulse waveform with a constant magnitude can be obtained regardless of the rate of change of the external magnetic field, and the wire can be applied to rotation detection sensors. In this study, we fabricated Fe/Co laminated films to generate a large Barkhausen jump in magnetic thin films. We observed a constant pulse voltage, even when the frequency of the external magnetic field was less than 10 Hz, and we observed a large Barkhausen jump in the magnetic thin film.
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publisher AIP Publishing LLC
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series AIP Advances
spelling doaj-art-29f7fd6e092549c491f0742ff4e5325c2025-08-20T01:58:28ZengAIP Publishing LLCAIP Advances2158-32262025-05-01155055017055017-510.1063/5.0267117Large Barkhausen jump in Fe/Co laminated filmsNorimichi Watanabe0Atsushi Matsuo1Susumu Abe2Akiyoshi Nakayama3Faculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-Ku, Yokohama 221-8686, JapanFaculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-Ku, Yokohama 221-8686, JapanFaculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-Ku, Yokohama 221-8686, JapanFaculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-Ku, Yokohama 221-8686, JapanWhen torsional stress is applied to a Fe–Co–V wire and a magnetic field is applied in the longitudinal direction of the wire, a pulse voltage is generated in the search coil wound around the wire due to a large Barkhausen jump. This pulse voltage has the characteristic that a pulse waveform with a constant magnitude can be obtained regardless of the rate of change of the external magnetic field, and the wire can be applied to rotation detection sensors. In this study, we fabricated Fe/Co laminated films to generate a large Barkhausen jump in magnetic thin films. We observed a constant pulse voltage, even when the frequency of the external magnetic field was less than 10 Hz, and we observed a large Barkhausen jump in the magnetic thin film.http://dx.doi.org/10.1063/5.0267117
spellingShingle Norimichi Watanabe
Atsushi Matsuo
Susumu Abe
Akiyoshi Nakayama
Large Barkhausen jump in Fe/Co laminated films
AIP Advances
title Large Barkhausen jump in Fe/Co laminated films
title_full Large Barkhausen jump in Fe/Co laminated films
title_fullStr Large Barkhausen jump in Fe/Co laminated films
title_full_unstemmed Large Barkhausen jump in Fe/Co laminated films
title_short Large Barkhausen jump in Fe/Co laminated films
title_sort large barkhausen jump in fe co laminated films
url http://dx.doi.org/10.1063/5.0267117
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