Lorentz-force–induced asymmetry in the Aharonov-Bohm effect in a three-terminal semiconductor quantum ring

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Published 18 May 2005 2005 EDP Sciences
, , Citation B. Szafran and F. M. Peeters 2005 EPL 70 810 DOI 10.1209/epl/i2005-10049-7

0295-5075/70/6/810

Abstract

Based on a solution of the time-dependent Schrödinger equation, we propose an experimental setup to measure the effect of the Lorentz force in a semiconductor Aharonov-Bohm ring connected to one input and two symmetrically placed output leads. While in a two-terminal device the Lorentz force only leads to a decreased Aharonov-Bohm oscillation amplitude, in the two-output ring it produces a distinct imbalance in the electron transfer probability from the input to the two output leads. Depending on the value of the momentum of the incident electron locking or antilocking of the transfer probability extrema for both leads appears as a function of the magnetic field.

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10.1209/epl/i2005-10049-7