Edge-State Velocity and Coherence in a Quantum Hall Fabry-Pérot Interferometer

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Edge-State Velocity and Coherence in a Quantum Hall Fabry-Pérot Interferometer

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Title: Edge-State Velocity and Coherence in a Quantum Hall Fabry-Pérot Interferometer
Author: McClure, Douglas Templeton; Zhang, Yiming; Rosenow, Bernd; Levenson-Falk, Eli M.; Marcus, Charles Masamed; Pfeiffer, Loren; West, Kenneth W.

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Citation: McClure, Douglas T., Yiming Zhang, Eli M. Levenson-Falk, Charles M. Marcus, Loren N. Pfeiffer, and Kenneth W. West. 2009. Edge-state velocity and coherence in a quantum hall Fabry-Pérot interferometer. Physical Review Letters 103(206806).
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Abstract: We investigate nonlinear transport in electronic Fabry-Pérot interferometers in the integer quantum Hall regime. For interferometers sufficiently large that Coulomb blockade effects are absent, a checkerboardlike pattern of conductance oscillations as a function of dc bias and perpendicular magnetic field is observed. Edge-state velocities extracted from the checkerboard data are compared to model calculations and found to be consistent with a crossover from skipping orbits at low fields to \(\vec{E} \times \vec{B}\) drift at high fields. Suppression of visibility as a function of bias and magnetic field is accounted for by including energy- and field-dependent dephasing of edge electrons.
Published Version: doi:10.1103/PhysRevLett.103.206806
Other Sources: http://arxiv.org/abs/0903.5097
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:5110748
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