Evidence for an inhomogeneity size effect in narrow GaAs/AlxGa1-xAs constrictions

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DOIResolve DOI: http://doi.org/10.1103/PhysRevB.39.10460
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TypeArticle
Journal titlePhysical Review B
ISSN0163-1829
Volume39
Issue14
Pages1046010463; # of pages: 4
AbstractMeasurements were made of the breakdown of the quantum Hall effect in GaAs/AlxGa1-xAs heterostructures with narrow constrictions (1 m). Structures were observed in both field sweeps and current sweeps. A simple model provides evidence that the origin of these structures is an inhomogeneity size effect which occurs when the length scale of the inhomogeneity becomes comparable with the sample width. The consequences of these inhomogeneities for critical current measurements are discussed. © 1989 The American Physical Society.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
NPARC number21274604
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Record identifier74728c8b-12d9-4abf-af8d-02df870dae29
Record created2015-03-18
Record modified2016-05-09
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