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Electroluminescence spectra of an STM-tip-induced quantum dot
University of Instelling Antwerp, Netherlands.
University of Instelling Antwerp, Netherlands.
University of Instelling Antwerp, Netherlands.
University of Instelling Antwerp, Netherlands.
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2004 (English)In: Physica. E, Low-Dimensional systems and nanostructures, ISSN 1386-9477, E-ISSN 1873-1759, Vol. 21, no 2-4, 270-274 p.Article in journal (Refereed) Published
Abstract [en]

We analyze the electroluminescence spectrum of an STM-tip-induced quantum dot in a GaAs surface layer. A flexible model has been developed, that combines analytical and numerical methods and describes the key features of many-particle states in the STM-tip-induced quantum dot. The dot is characterized by its depth and lateral width, which are experimentally controlled by the bias and the tunneling current. We find, in agreement with experiment, that increasing voltage on the STM-tip results in a red shift of the electroluminescence peaks, while the peak positions as a function of the electron tunneling current through the STM-tip reveal a blue shift. (C) 2003 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
Elsevier , 2004. Vol. 21, no 2-4, 270-274 p.
Keyword [en]
electroluminescence; STM; quantum dot
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-141516DOI: 10.1016/j.physe.2003.11.028ISI: 000220873300024OAI: oai:DiVA.org:liu-141516DiVA: diva2:1145602
Conference
11th International Conference on Modulated Semiconductor Structures (MSS11)
Available from: 2017-09-29 Created: 2017-09-29 Last updated: 2017-10-04

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Kemerink, Martijn
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Citation style
  • apa
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