Aharonov-Bohm Physics with Spin I: Geometric Phases in One-dimensional Ballistic Rings
arXiv:cond-mat/0402165 · doi:10.1103/PhysRevB.69.155326
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 non-adiabatic situation. For an in-plane magnetic field, we rigorously prove the spin-flip effect presented in Frustaglia et al., Phys. Rev. Lett. 87, 256602 (2001), which allows to control and switch the polarization of outgoing electrons by means of an Aharonov-Bohm flux, and derive analytical expressions for the energy-averaged magneto-conductance. Our results support numerical calculations for two-dimensional ballistic rings presented in the second paper (Frustaglia et al., submitted to Phys. Rev. B) of this series.
arXiv comment33 pages, 9 figures. First part of a series of two articles
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- Effect of spin-orbit coupling on zero-conductance resonances in asymmetrically coupled one-dimensional rings
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- Current-Conserving Aharonov-Bohm Interferometry with Arbitrary Spin Interactions
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- Localized states in a semiconductor quantum ring with a tangent wire