Commensurability effects in Andreev antidot billiards

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dc.creatorEroms, J.
dc.creatorTolkiehn, M.
dc.creatorWeiss, D.
dc.creatorRössler, U.
dc.creatorDe Boeck, J.
dc.creatorBorghs, G.
dc.date2001-07-09
dc.date.accessioned2026-07-07T02:42:04Z
dc.date.available2026-07-07T02:42:04Z
dc.descriptionAn Andreev billiard was realized in an array of niobium filled antidots in a high-mobility InAs/AlGaSb heterostructure. Below the critical temperature T_C of the Nb dots we observe a strong reduction of the resistance around B=0 and a suppression of the commensurability peaks, which are usually found in antidot lattices. Both effects can be explained in a classical Kubo approach by considering the trajectories of charge carriers in the semiconductor, when Andreev reflection at the semiconductor-superconductor interface is included. For perfect Andreev reflection, we expect a complete suppression of the commensurability features, even though motion at finite B is chaotic.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0107165
dc.identifierhttp://arxiv.org/abs/cond-mat/0107165
dc.identifierEurophys. Letters 58, 569 (2002)
dc.identifierdoi:10.1209/epl/i2002-00433-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17994
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.titleCommensurability effects in Andreev antidot billiards
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