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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

High sensitivity giant magnetoresistance magnetic sensor using oscillatory domain wall displacement

http://hdl.handle.net/2237/14167
http://hdl.handle.net/2237/14167
966158ac-7cef-4dc5-8ef0-f03bd2c05e7d
名前 / ファイル ライセンス アクション
journal_of_applied_physics_107_09E709.pdf journal_of_applied_physics_107_09E709.pdf (260.8 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2010-09-21
タイトル
タイトル High sensitivity giant magnetoresistance magnetic sensor using oscillatory domain wall displacement
言語 en
著者 Wang, G. A.

× Wang, G. A.

WEKO 38810

en Wang, G. A.

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Nakashima, S.

× Nakashima, S.

WEKO 38811

en Nakashima, S.

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Arai, S.

× Arai, S.

WEKO 38812

en Arai, S.

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Kato, T.

× Kato, T.

WEKO 38813

en Kato, T.

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Iwata, S.

× Iwata, S.

WEKO 38814

en Iwata, S.

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 Copyright (2010) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
抄録
内容記述 A high sensitivity giant magnetoresistance (GMR) magnetic sensor has been demonstrated using the oscillatory domain wall displacing method. This sensor consists of a 30-μm-wide GMR element, CoFeB (10 nm)/Cu (2.2 nm)/CoFe (3 nm)/MnIr (10 nm), and a 100-μm-wide aluminum conducting wire placed onto the GMR element with an insulation layer between them. Domain walls in the free layer, whose easy axis is perpendicular to the length direction of GMR element, are oscillation-driven by a 140 kHz alternating magnetic field produced by an ac flowing through the aluminum conducting wire. The oscillatory wall displacement reduces the influence of wall coercivity and enables an output proportional to the external field. By applying a 1-kHz external field and separating the 1-kHz component from the amplified bridge signal using a band-pass filter, we successfully detected a magnetic field as small as 0.21 mOe (21 nT), which is much smaller than the wall coercivity of the free layer.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 American Institute of Physics
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1063/1.3360585
ISSN
収録物識別子タイプ PISSN
収録物識別子 0021-8979
書誌情報 en : JOURNAL OF APPLIED PHYSICS

巻 107, 号 9, p. 09E709-09E709, 発行日 2010-05-01
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/14167
識別子タイプ HDL
URI
識別子 http://dx.doi.org/10.1063/1.3360585
識別子タイプ DOI
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