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

 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. Note: Order does not necessarily reflect citation order of authors. 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). Full Text & Related Files: McClure_EdgeStateVelocity.pdf (419.8Kb; PDF) 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 Downloads of this work:

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