%0 Journal Article
%T Puddle-Induced Resistance Oscillations in the Breakdown of the Graphene Quantum Hall Effect
%+ Laboratoire national des champs magnétiques intenses - Grenoble (LNCMI-G )
%+ Laboratoire Charles Coulomb (L2C)
%+ Laboratoire de photonique et de nanostructures (LPN)
%+ Paul Scherrer Institute (PSI)
%+ Department of Physics, Chemistry and Biology [Linköping] (IFM)
%+ Laboratoire national des champs magnétiques intenses - Toulouse (LNCMI-T)
%+ Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation (IMEP-LAHC )
%A Yang, M.
%A Couturaud, O.
%A Desrat, W.
%A Consejo, C.
%A Kazazis, D.
%A Yakimova, R.
%A Syvajarvi, M.
%A Goiran, Michel
%A Béard, Jérome
%A Frings, P.
%A Pierre, Mathieu
%A Cresti, A.
%A Escoffier, Walter
%A Jouault, Benoit
%< avec comité de lecture
%Z CMNE
%@ 0031-9007
%J Physical Review Letters
%I American Physical Society
%V 117
%N 23
%P 237702
%8 2016-12-02
%D 2016
%Z 1611.08179
%R 10.1103/PhysRevLett.117.237702
%Z Physics [physics]/Condensed Matter [cond-mat]
%Z Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con]Journal articles
%X We report on the stability of the quantum Hall plateau in wide Hall bars made from a chemically gated graphene film grown on SiC. The ν=2 quantized plateau appears from fields B≃5  T and persists up to B≃80  T. At high current density, in the breakdown regime, the longitudinal resistance oscillates with a 1/B periodicity and an anomalous phase, which we relate to the presence of additional electron reservoirs. The high field experimental data suggest that these reservoirs induce a continuous increase of the carrier density up to the highest available magnetic field, thus enlarging the quantum plateaus. These in-plane inhomogeneities, in the form of high carrier density graphene pockets, modulate the quantum Hall effect breakdown and decrease the breakdown current.
%G English
%2 https://hal.science/hal-01939530/document
%2 https://hal.science/hal-01939530/file/1611.08179.pdf
%L hal-01939530
%U https://hal.science/hal-01939530
%~ UNIV-SAVOIE
%~ UNIV-TLSE3
%~ UGA
%~ CNRS
%~ INSA-TOULOUSE
%~ INPG
%~ L2C
%~ IMEP-LAHC
%~ MIPS
%~ UNIV-MONTPELLIER
%~ LNCMI
%~ INSA-GROUPE
%~ UGA-COMUE
%~ USMB-COMUE
%~ ANR
%~ UNIV-UT3
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%~ UM-2015-2021
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