Imaging Transport Resonances in the Quantum Hall Effect

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dc.creatorSteele, G. A.
dc.creatorAshoori, R. C.
dc.creatorPfeiffer, L. N.
dc.creatorWest, K. W.
dc.date2005-06-15
dc.date2005-08-04
dc.date.accessioned2026-07-07T06:23:09Z
dc.date.available2026-07-07T06:23:09Z
dc.descriptionWe use a scanning capacitance probe to image transport in the quantum Hall system. Applying a DC bias voltage to the tip induces a ring-shaped incompressible strip (IS) in the 2D electron system (2DES) that moves with the tip. At certain tip positions, short-range disorder in the 2DES creates a quantum dot island in the IS. These islands enable resonant tunneling across the IS, enhancing its conductance by more than four orders of magnitude. The images provide a quantitative measure of disorder and suggest resonant tunneling as the primary mechanism for transport across ISs.
dc.description4 pages, 4 figures, submitted to PRL. For movies and additional infomation, see http://electron.mit.edu/scanning/; Added scale bars to images, revised discussion of figure 3, other minor changes
dc.identifierhttps://arxiv.org/abs/cond-mat/0506347
dc.identifierhttp://arxiv.org/abs/cond-mat/0506347
dc.identifierPhys. Rev. Lett. 95, 136804 (2005)
dc.identifierdoi:10.1103/PhysRevLett.95.136804
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96130
dc.subjectMesoscale and Nanoscale Physics
dc.titleImaging Transport Resonances in the Quantum Hall Effect
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