Stano, Peter and Fabian, Jaroslav and Jacquod, Philippe (2012) Nonlinear spin to charge conversion in mesoscopic structures. PHYSICAL REVIEW B, 85 (24): 241301. ISSN 1098-0121,
Full text not available from this repository.Abstract
Motivated by recent experiments [I. J. Vera-Marun, V. Ranjan, and B. J. van Wees, Nat. Phys. 8, 313 (2012)], we formulate a nonlinear theory of spin transport in quantum coherent conductors. We show how a mesoscopic constriction with energy-dependent transmission can convert a spin current injected by a spin accumulation into an electric signal, relying neither on magnetic nor exchange fields. When the transmission through the constriction is spin independent, the spin-charge coupling is nonlinear, with an electric signal that is quadratic in the accumulation. We estimate that gated mesoscopic constrictions have a sensitivity that allows to detect accumulations much smaller than a percent of the Fermi energy.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ROOM-TEMPERATURE; POLARIZATION; SPINTRONICS; TRANSPORT; INJECTION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 May 2020 05:44 |
| Last Modified: | 13 May 2020 05:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/18661 |
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