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Advanced CPP-GMR Spin-Valve Sensors for Narrow Reader Applications
https://repo.qst.go.jp/records/49426
https://repo.qst.go.jp/records/49426a58ff42d-3a04-4caa-ab89-02dbf83dbacd
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-01-09 | |||||
| タイトル | ||||||
| タイトル | Advanced CPP-GMR Spin-Valve Sensors for Narrow Reader Applications | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Nakatani, Tomoya
× Nakatani, Tomoya× 李, 松田× Sakuraba, Yuya× Furubayashi, Takao× Hono, Kazuhiro× 李 松田 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The near-future ultra-high-density magnetic recording with an assist recording technology requires a substantial evolution of the read-head technology. A read sensor with a small sensor resistance-area product (RA), a large magnetoresistance ratio (ΔR/R), and a thin total sensor thickness is required for the low bit error rate and high-spatial resolution of reading. We developed current-perpendicular-to-plane giant magnetoresistance sensors using highly spin-polarized Heusler alloy ferromagnetic layers with the spin polarization of the conducting electron β ~ 0.8. A reasonably large ΔR/R up to 14% was obtained by a practical bottom-pinned spin-valve structure with a conventional metallic spacer layer of an Ag 90 Sn 10 (AgSn) alloy. By replacing the spacer layer with a conductive oxide-based AgSn/InZnO bilayer, a large ΔR/R up to 32% was realized at RA value of ~0.1 Ω · μm 2 , which is optimal for the read sensor application. A large voltage output up to 6 mV was obtained for a sensor utilization of ~33% at a bias voltage of 100 mV. | |||||
| 書誌情報 |
IEEE Transactions on Magnetics 巻 54, 号 2, p. 1-11, 発行日 2018-02 |
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| 出版者 | ||||||
| 出版者 | IEEE | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1109/TMAG.2017.2753221 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://ieeexplore.ieee.org/abstract/document/8057272/ | |||||
| 関連名称 | https://ieeexplore.ieee.org/abstract/document/8057272/ | |||||
