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Determination of Cobalt Spin-Diffusion Length in Co/Cu Multilayered Heterojunction Nanocylinders Based on Valet–Fert Model
http://hdl.handle.net/10069/00040517
http://hdl.handle.net/10069/00040517dbf19d4e-3288-4123-b7d0-89ad60b80620
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||
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公開日 | 2021-02-22 | |||||||||||
タイトル | ||||||||||||
タイトル | Determination of Cobalt Spin-Diffusion Length in Co/Cu Multilayered Heterojunction Nanocylinders Based on Valet–Fert Model | |||||||||||
言語 | ||||||||||||
言語 | eng | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | Anodization | |||||||||||
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主題Scheme | Other | |||||||||||
主題 | Cobalt | |||||||||||
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主題Scheme | Other | |||||||||||
主題 | Copper | |||||||||||
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主題Scheme | Other | |||||||||||
主題 | Electrodeposition | |||||||||||
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主題Scheme | Other | |||||||||||
主題 | Heterojunction | |||||||||||
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主題Scheme | Other | |||||||||||
主題 | Magnetoresistance | |||||||||||
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主題Scheme | Other | |||||||||||
主題 | Multilayer | |||||||||||
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主題Scheme | Other | |||||||||||
主題 | Nanochannel | |||||||||||
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主題Scheme | Other | |||||||||||
主題 | Nanocylinder | |||||||||||
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主題Scheme | Other | |||||||||||
主題 | Spin-diffusion length | |||||||||||
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 | |||||||||||
著者 |
Mizoguchi, Saeko
× Mizoguchi, Saeko
× Hayashida, Masamitsu
× Ohgai, Takeshi
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抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | Anodized aluminum oxide (AAO) nanochannels of diameter, D, of ~50 nm and length, L, of ~60 µm (L/D: approx. 1200 in the aspect ratio), were synthesized and applied as an electrode for the electrochemical growth of Co/Cu multilayered heterojunction nanocylinders. We synthesized numerous Co/Cu multilayered nanocylinders by applying a rectangular pulsed potential deposition method. The Co layer thickness, tCo, ranged from ~8 to 27 nm, and it strongly depended on the pulsed-potential condition for Co layers, ECo. The Cu layer thickness, tCu, was kept at less than 4 nm regardless of ECo. We applied an electrochemical in situ contact technique to connect a Co/Cu multilayered nanocylinder with a sputter-deposited Au thin layer. Current perpendicular-to-plane giant magnetoresistance (CPP-GMR) effect reached up to ~23% in a Co/Cu multilayered nanocylinder with ~4760 Co/Cu bilayers (tCu: 4 nm and tCo: 8.6 nm). With a decrease in tCo, (ΔR/Rp)−1 was linearly reduced based on the Valet–Fert equation under the condition of tF > lFsf and tN < lNsf. The cobalt spin-diffusion length, lCosf, was estimated to be ~12.5 nm. | |||||||||||
書誌情報 |
Nanomaterials 巻 11, 号 1, p. 218, 発行日 2021-01-15 |
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出版者 | ||||||||||||
出版者 | MDPI | |||||||||||
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収録物識別子タイプ | ISSN | |||||||||||
収録物識別子 | 2079-4991 | |||||||||||
DOI | ||||||||||||
識別子タイプ | DOI | |||||||||||
関連識別子 | 10.3390/nano11010218 | |||||||||||
権利 | ||||||||||||
権利情報 | ©2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/) | |||||||||||
引用 | ||||||||||||
内容記述タイプ | Other | |||||||||||
内容記述 | Nanomaterials, 11(1), art.no.218; 2021 |