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arxiv: 1309.1241 · v1 · pith:7MA4B4EKnew · submitted 2013-09-05 · ❄️ cond-mat.mes-hall · cond-mat.mtrl-sci

High-contrast Aharonov-Bohm oscillations in the acoustoelectric transport regime

E. Strambini , E. Ligar\`o , F. Beltram , H. Beere , C. A. Nicoll , D. A. Ritchie , V. Piazza This is my paper
classification ❄️ cond-mat.mes-hall cond-mat.mtrl-sci
keywords acoustoelectrictransportaharonov-bohmballisticdevicesoscillationsanalogyanalysis
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Phase-coherent acoustoelectric transport is reported.Aharonov-Bohm oscillations in the acoustoelectric current with visibility exceeding 100% were observed in mesoscopic GaAs rings as a function of an external magnetic field at cryogenic temperatures. A theoretical analysis of the acoustoelectric transport in ballistic devices is proposed to model experimental observations. Our findings highlight a close analogy between acoustoelectric transport and thermoelectric properties in ballistic devices.

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