Noninvasive detection of charge rearrangement in a quantum dot in high magnetic fields

DOI to cite this document:: 10.5283/epub.11975

Fricke, C. ; Rogge, M. C. ; Harke, B. ; Reinwald, Matthias ; Wegscheider, Werner ; Hohls, F. ; Haug, R. J.

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Date of publication of this fulltext: 25 Jan 2010 13:02

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Abstract

We demonstrate electron redistribution caused by magnetic field on a single quantum dot measured by means of a quantum point contact as noninvasive detector. Our device, which is fabricated by local anodic oxidation, allows us to control independently the quantum point contact and all tunneling barriers of the quantum dot. Thus we are able to measure both the change of the quantum dot charge and ...