Quantized transport in ballistic rectifiers: sign reversal and step-like output

DOI to cite this document:: 10.5283/epub.11801

Haan, S. ; Lorke, Axel ; Kotthaus, Jörg P. ; Bichler, Max ; Wegscheider, Werner

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Date of publication of this fulltext: 11 Jan 2010 13:02

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Abstract

Tunable ballistic rectifiers with different geometries are investigated. On standard structures with a symmetry-breaking scatterer embedded in a cross-bar geometry, we observe—apart from the usual rectification behavior—oscillations in the output characteristics that show the importance of quantum transport for the understanding of the rectification mechanism. On samples that are designed taking ...