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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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Nanomaterials11_218.pdf (5.3 MB)
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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 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cobalt | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Copper | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Electrodeposition | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Heterojunction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Magnetoresistance | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Multilayer | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Nanochannel | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Nanocylinder | |||||
キーワード | ||||||
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 | |||||
ISSN | ||||||
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 |