Frustaglia, Diego and Hentschel, Martina and Richter, Klaus (2001) Quantum transport in nonuniform magnetic fields: Aharonov-Bohm ring as a spin switch. PHYSICAL REVIEW LETTERS, 87 (25): 256602. ISSN 0031-9007
Full text not available from this repository.Abstract
We study spin-dependent magnetoconductance in mesoscopic rings subject to an inhomogeneous in-plane magnetic field. We show that the polarization direction of transmitted spin-polarized electrons can be controlled via an additional magnetic flux such that spin flips are induced at half a flux quantum. This quantum interference effect is independent of the strength of the nonuniform field applied. We give an analytical explanation for one-dimensional rings and numerical results for corresponding ballistic micro structures.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MESOSCOPIC RINGS; BERRYS PHASE; ELECTRONS; INJECTION; OSCILLATIONS; COHERENCE; REVERSAL; DEVICE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Nov 2021 06:50 |
| Last Modified: | 23 Nov 2021 06:50 |
| URI: | https://pred.uni-regensburg.de/id/eprint/40868 |
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