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http://hdl.handle.net/10119/11449
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| Title: | High-Efficiency Long-Spin-Coherence Electrical Spin Injection in CoFe/InGaAs Two-Dimensional Electron Gas Lateral Spin-Valve Devices |
| Authors: | Hidaka, Shiro
Akabori, Masashi
Yamada, Syoji |
| Issue Date: | 2012-10-12 |
| Publisher: | The Japan Society of Applied Physics |
| Magazine name: | Applied Physics Express |
| Volume: | 5 |
| Number: | 11 |
| Start page: | 113001-1 |
| End page: | 113001-3 |
| DOI: | 10.1143/APEX.5.113001 |
| Abstract: | Electrical spin injection experiments are performed at 1.5 K in a new hybrid structure, In_<0.75>Ga_<0.25>As two-dimensional electron gases (2DEGs) with lateral Co_<0.8>Fe_<0.2> electrodes. From the electrode spacing (≤ ∼9 µm) dependence of the spin-valve signals in non-local regime, we obtained very promising results such as longer spin diffusion length L_s of ∼5.1 µm and higher spin polarization η of ∼5.7% than those in former reports. They are mainly attained by the suppression of the D'yakonov–Perel' spin relaxation process due to the tuned spin–orbit (SO) interactions. |
| Rights: | This is the author's version of the work. It is posted here by permission of The Japan Society of Applied Physics. Copyright (C) 2012 The Japan Society of Applied Physics. Shiro Hidaka, Masashi Akabori, and Syoji Yamada, Applied Physics Express, 5(11), 2012, 113001. http://apex.jsap.jp/link?APEX/5/113001/ |
| URI: | http://hdl.handle.net/10119/11449 |
| Material Type: | author |
| Appears in Collections: | g10-1. 雑誌掲載論文 (Journal Articles)
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