Scanning gate induced effects in nonlinear transport through nanostructures

URN to cite this document:: urn:nbn:de:bvb:355-epub-310730
DOI to cite this document:: 10.5283/epub.31073

Gorini, Cosimo ; Weinmann, Dietmar ; Jalabert, Rodolfo A.

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Date of publication of this fulltext: 07 Jan 2015 12:53

Alternative links to fulltext:DOI Arxiv

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Abstract

We investigate the effect of a scanning gate tip on the nonlinear quantum transport properties of nanostructures. Generally, we predict that the symmetry of the current-voltage characteristic in reflection-symmetric samples is broken by a tip-induced rectifying conductance correction. Moreover, in the case of a quantum point contact (QPC), the tip-induced rectification term becomes dominant as ...