Smirnov, Sergey and Bercioux, Dario and Grifoni, Milena and Richter, Klaus (2008) Quantum dissipative Rashba spin ratchets. PHYSICAL REVIEW LETTERS, 100 (23): 230601. ISSN 0031-9007,
Full text not available from this repository.Abstract
We predict the possibility to generate a finite stationary spin current by applying an unbiased ac driving to a quasi-one-dimensional asymmetric periodic structure with Rashba spin-orbit interaction and strong dissipation. We show that under a finite coupling strength between the orbital degrees of freedom the electron dynamics at low temperatures exhibits a pure spin ratchet behavior, i.e., a finite spin current and the absence of charge transport in spatially asymmetric structures. It is also found that the equilibrium spin currents are not destroyed by the presence of strong dissipation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Oct 2020 08:29 |
| Last Modified: | 29 Oct 2020 08:29 |
| URI: | https://pred.uni-regensburg.de/id/eprint/30737 |
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