Eberle, F. and Schuh, D. and Bougeard, D. and Weiss, D. and Ciorga, Mariusz (2021) Diffusive Spin Transport in Narrow Two-Dimensional-Electron-gas Channels. PHYSICAL REVIEW APPLIED, 16 (1): 014010. ISSN 2331-7019
Full text not available from this repository. (Request a copy)Abstract
Using the geometry of the spin field-effect transistor, we investigate the spin transport of in-plane spins in an array of narrow channels formed in a two-dimensional electron gas confined in an (In, Ga)As quantum well. We demonstrate a clear enhancement of the spin-diffusion length with decreasing channel width, yielding up to 10 mu m for the narrowest channels. We discuss the observed enhancement in terms of the suppression of the Dyakonov-Perel mechanism of spin relaxation, which has been invoked in previous studies in the case of diffusion of out-of-plane oriented spins. We also show that the spin signal is significantly higher when injecting into an array of narrow channels, compared with injecting into a single narrow channel.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RELAXATION; INJECTION |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Dominique Bougeard Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Jul 2022 06:06 |
| Last Modified: | 28 Jul 2022 06:06 |
| URI: | https://pred.uni-regensburg.de/id/eprint/45949 |
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