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Optical properties of a tip-induced quantum dot
Eindhoven University of Technology, Netherlands.ORCID iD: 0000-0002-7104-7127
University of Gottingen, Germany.
Eindhoven University of Technology, Netherlands.
University of Nijmegen, Netherlands.
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2001 (English)In: Applied Physics A: Materials Science & Processing, ISSN 0947-8396, E-ISSN 1432-0630, Vol. 72, S239-S242 p.Article in journal (Refereed) Published
Abstract [en]

We have performed optical spectroscopy measurements on a STM-tip-induced quantum dot in a GaAs layer. The dominant confinement in the (hole) quantum dot is found to be in the direction parallel to the tip axis. Electron confinement is achieved by a sub-surface AlGaAs barrier. Current-dependent measurements indicate that many-body interactions can cause spectral blueshifts up to 75 meV for a tunneling current of 10 nA. Consequently, a full treatment of the many-body problem is required for an accurate description of this type of system.

Place, publisher, year, edition, pages
Springer Verlag (Germany) , 2001. Vol. 72, S239-S242 p.
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-141526DOI: 10.1007/s003390100668ISI: 000205435300021OAI: oai:DiVA.org:liu-141526DiVA: diva2:1145589
Available from: 2017-09-29 Created: 2017-09-29 Last updated: 2017-10-04

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Kemerink, Martijn
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