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Quantum interference Hall effect in nanopatterned two-dimensional electron gas systems

Authors Xie, Hang HKUST affiliated (currently or previously)
Sheng, Ping View this author's profile
Issue Date 2009
Source Physical Review B , v. 79, (16), April 2009, article number 165307
Summary We show that in mesoscopic two-dimensional electron gas systems, quantum interference caused by predesigned nanopatterns can enhance the Hall effect by up to 500%. A quality factor Q is defined which optimizes the ratio of the Hall voltage to longitudinal voltage. Genetic algorithm and the Landauer-Büttiker formalism were used to search for the potential configuration that can achieve a large Q. We propose some realistic nanopatterns to realize this effect.
ISSN 1098-0121
Rights © 2009 American Physical Society
Language English
Format Article
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