First-Principles Study of Integer Quantum Hall Transitions in Mesoscopic Samples

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dc.creatorZhou, Chenggang
dc.creatorBerciu, Mona
dc.date2003-11-16
dc.date2003-11-25
dc.date.accessioned2026-07-07T02:54:47Z
dc.date.available2026-07-07T02:54:47Z
dc.descriptionWe perform first principles numerical simulations to investigate resistance fluctuations in mesoscopic samples, near the transition between consecutive Quantum Hall plateaus. We use six-terminal geometry and sample sizes similar to those of real devices. The Hall and longitudinal resistances extracted from the generalized Landauer formula reproduce all the experimental features uncovered recently. We then use a simple generalization of the Landauer-Büttiker model, based on the interplay between tunneling and chiral currents -- the co-existing mechanisms for transport -- to explain the three distinct types of fluctuations observed, and identify the central region as the critical region.
dc.descriptionchanges to acknowledgements only
dc.identifierhttps://arxiv.org/abs/cond-mat/0311365
dc.identifierhttp://arxiv.org/abs/cond-mat/0311365
dc.identifierEurophys. Lett., 69 (4), pp. 602-608 (2005)
dc.identifierdoi:10.1209/epl/i2004-10398-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22701
dc.subjectMesoscale and Nanoscale Physics
dc.titleFirst-Principles Study of Integer Quantum Hall Transitions in Mesoscopic Samples
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