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Enhanced current-perpendicular-to-plane giant magnetoresistance by improvement of atomic order of Co2FeSi Heusler alloy film through Ag doping
https://repo.qst.go.jp/records/49425
https://repo.qst.go.jp/records/494253f032df3-f9f5-40a4-b808-e1ebea1fe985
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-01-09 | |||||
タイトル | ||||||
タイトル | Enhanced current-perpendicular-to-plane giant magnetoresistance by improvement of atomic order of Co2FeSi Heusler alloy film through Ag doping | |||||
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 |
李, 松田
× 李, 松田× Sakuraba, Yuya× Sasaki, Taisuke× Chen, Jiamin× Bosu, Subrojati× Hono, Kazuhiro× 李 松田 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We investigated the effect of Ag doping on atomic order and spin polarization of Co2FeSi Heusler alloy thin films. The Co2FeSi film doped with 3at.%-Ag showed improved degree of B2- and 〖L2〗_1-ordering after thermal annealing comparing to Co2FeSi film. Negative sign of anisotropic magnetoresistance suggests the half-metallic nature of Ag-doped Co2FeSi film after annealing at a relatively low temperature of 300 °C. The current-perpendicular-to-plane pseudo spin-valves using the Ag-doped Co2FeSi ferromagnetic (FM) electrodes showed about 1.2 times larger MR ratio than that using the Co2FeSi FM electrodes, reflecting an enhanced spin polarization in Ag-doped Co2FeSi film. Micro-structure analysis revealed the doped Ag was rejected out of Co2FeSi layer after annealing. This study suggests Ag doping to Co-based Heusler compound having no/few solubility with Ag is beneficial for realizing spin-valves with high output at moderate annealing conditions. | |||||
書誌情報 |
AIP Advances 巻 8, p. 075230-1-075230-9, 発行日 2018-07 |
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出版者 | ||||||
出版者 | AIP Publishing | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1063/1.5045175 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://aip.scitation.org/doi/10.1063/1.5045175 | |||||
関連名称 | https://aip.scitation.org/doi/10.1063/1.5045175 |