Tunnel Magnetoresistance in Ferromagnet–Superconductor–Ferromagnet Single-Electron Transistors with Different Lead Spacings up to 50 μm
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概要
- 論文の詳細を見る
We fabricated single-electron transistors (SETs) with ferromagnetic (FM) Co leads and superconducting (SC) Al islands, and measured their tunnel magnetoresistances. Under the antiparallel magnetization state of the two FM leads, current increase due to the SC gap suppression by spin accumulation was observed. Tunnel magnetoresistance ratios of the antiparallel state to the parallel state were investigated for 10 FM SETs with different spacings between the two FM leads, from 0.35 to 50 μm. Spin valve effects were confirmed in the SETs with an FM lead spacing not only on the submicron order but also of 50 μm.
- Japan Society of Applied Physicsの論文
- 2007-10-25
著者
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Kobayashi Tadayuki
Department Of Communications And Systems The University Of Electro-communications
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Mizugaki Yoshinao
Department Of Electronic Engineering The University Of Electro-communications
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Moriya Masataka
Department Of Electronic Engineering The University Of Electro-communications
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Usami Kouichi
Department of Electronic Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Ch
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Hakii Hidemitsu
Department Of Electronic Engineering The University Of Electro-communications
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Moriya Masataka
Department of Electronic Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
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Kobayashi Tadayuki
Department of Electronic Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
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Shimada Hiroshi
Course of Coherent Optical Science, and Department of Applied Physics and Chemistry, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
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Mizugaki Yoshinao
Department of Electronic Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
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Hakii Hidemitsu
Department of Electronic Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
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