Phase Diagram of a Quantum Dot with Steep Walls in Strong Magnetic Fields

DOI to cite this document:: 10.5283/epub.11177

Fuhrer, A. ; Lüscher, S. ; Heinzel, Thomas ; Ensslin, Klaus ; Wegscheider, Werner ; Bichler, Max

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Date of publication of this fulltext: 30 Nov 2009 13:46

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Abstract

We have studied the transport properties of a semiconductor quantum dot with steep walls in the Coulomb blockade regime and under strong magnetic fields with a filling factor between 2 and 4 inside the dot. A striking periodic suppression of Coulomb blockade resonances as a function of gate voltage is found, which reflects the selective coupling of dot states that belong to different Landau ...