Aharonov-Bohm physics with spin. I. Geometric phases in one-dimensional ballistic rings

Hentschel, Martina and Schomerus, Henning and Frustaglia, Diego and Richter, Klaus (2004) Aharonov-Bohm physics with spin. I. Geometric phases in one-dimensional ballistic rings. PHYSICAL REVIEW B, 69 (15): 155326. ISSN 1098-0121, 1550-235X

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Abstract

We analytically calculate the spin-dependent electronic conductance through a one-dimensional ballistic ring in the presence of an inhomogeneous magnetic field and identify signatures of geometric and Berry phases in the general nonadiabatic situation. For an in-plane magnetic field, we rigorously prove the spin-flip effect presented by Frustaglia [Phys. Rev. Lett. 87, 256602 (2001)], which allows us to control and switch the polarization of outgoing electrons by means of an Aharonov-Bohm flux, and derive analytical expressions for the energy-averaged magnetoconductance. Our results support numerical calculations for two-dimensional ballistic rings presented in the second paper [Frustaglia , following paper, Phys. Rev. B 69, 155327 (2004)] of this series.

Item Type: Article
Uncontrolled Keywords: QUANTUM TRANSPORT; MESOSCOPIC RINGS; BERRY PHASE; CONDUCTIVITY; COHERENCE; EVOLUTION; REVERSAL; DOT;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Depositing User: Dr. Gernot Deinzer
Date Deposited: 21 Jul 2021 09:41
Last Modified: 21 Jul 2021 09:41
URI: https://pred.uni-regensburg.de/id/eprint/37839

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