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Tuning of tunneling rates in quantum dots using a quantum point contact

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • M. C. Rogge
  • C. Fricke
  • B. Harke
  • F. Hohls
  • R. J. Haug

Organisationseinheiten

Externe Organisationen

  • University of Cambridge
  • Universität Regensburg
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Details

OriginalspracheEnglisch
Seiten (von - bis)500-503
Seitenumfang4
FachzeitschriftPhysica E: Low-Dimensional Systems and Nanostructures
Jahrgang34
Ausgabenummer1-2
PublikationsstatusVeröffentlicht - 1 Aug. 2006

Abstract

We study the influence of asymmetric tunneling rates of a lateral quantum dot connected to source and drain leads. We use a quantum point contact (QPC) to detect charging events on the dot. Since the mean charge depends on the ratio of the tunneling rates the QPC can be used to detect symmetric configurations where both rates are equal. Thus, the transport properties of the dot can be investigated concerning this symmetry. We concentrate on the visibility of features that correspond to transitions with excited states. We interpret the results with the number of channels used for transport, the electron flow direction and the rate symmetry.

ASJC Scopus Sachgebiete

Zitieren

Tuning of tunneling rates in quantum dots using a quantum point contact. / Rogge, M. C.; Fricke, C.; Harke, B. et al.
in: Physica E: Low-Dimensional Systems and Nanostructures, Jahrgang 34, Nr. 1-2, 01.08.2006, S. 500-503.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Rogge MC, Fricke C, Harke B, Hohls F, Haug RJ, Wegscheider W. Tuning of tunneling rates in quantum dots using a quantum point contact. Physica E: Low-Dimensional Systems and Nanostructures. 2006 Aug 1;34(1-2):500-503. doi: 10.1016/j.physe.2006.03.022
Rogge, M. C. ; Fricke, C. ; Harke, B. et al. / Tuning of tunneling rates in quantum dots using a quantum point contact. in: Physica E: Low-Dimensional Systems and Nanostructures. 2006 ; Jahrgang 34, Nr. 1-2. S. 500-503.
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AU - Rogge, M. C.

AU - Fricke, C.

AU - Harke, B.

AU - Hohls, F.

AU - Haug, R. J.

AU - Wegscheider, W.

N1 - Funding information: This work was supported by BMBF.

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KW - Tunneling rates

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