Hysteretic magnetotransport in p-type AlGaAs heterostructures with In/Zn/Au ohmic contacts

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dc.creatorGrbic, B.
dc.creatorLeturcq, R.
dc.creatorIhn, T.
dc.creatorEnsslin, K.
dc.creatorBlatter, G.
dc.creatorReuter, D.
dc.creatorWieck, A. D.
dc.date2007-11-05
dc.date.accessioned2026-07-07T09:42:58Z
dc.date.available2026-07-07T09:42:58Z
dc.descriptionThe two-terminal magneto-conductance of a hole gas in C-doped AlGaAs/GaAs heterostructures with ohmic contacts consisting of alloyed In/Zn/Au displays a pronounced hysteresis of the conductance around zero magnetic field. The hysteresis disappears above magnetic fields of around 0.5 T and temperatures above 300 mK. For magnetic fields below 10 mT we observe a pronounced dip in the magneto-conductance. We tentatively discuss these experimental observations in the light of superconductivity of the ohmic contacts.
dc.description4+ pages, 3 figures;
dc.identifierhttps://arxiv.org/abs/0711.0534
dc.identifierhttp://arxiv.org/abs/0711.0534
dc.identifierPhys. Rev. B 77, 245307 (2008)
dc.identifierdoi:10.1103/PhysRevB.77.245307
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/162381
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.titleHysteretic magnetotransport in p-type AlGaAs heterostructures with In/Zn/Au ohmic contacts
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