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Magnetoconductance of a few-electron open quantum dot
Linköping University, The Institute of Technology. Linköping University, Department of Science and Technology.
Inst. for Microstructural Science, National Research Council, Montreal Road, Ottawa, Ont. K1A 0R6, Canada.
Inst. for Microstructural Science, National Research Council, Montreal Road, Ottawa, Ont. K1A 0R6, Canada, Dépt. de Physique and CRPS, Université de Sherbrooke, Sherbrooke, Que. J1K 2R1, Canada.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics .
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2000 (English)In: Physica. E, Low-Dimensional systems and nanostructures, ISSN 1386-9477, E-ISSN 1873-1759, Vol. 6, no 1, 409-413 p.Article in journal (Refereed) Published
Abstract [en]

Magnetoconductance of a small open lateral dot is studied both theoretically and experimentally for the conditions when the dot contains down to approximately 15 electrons. We confirm the existence of a new regime for open dots in which the transport through the structure occurs through individual eigenstates of the corresponding closed dot. In particular, at low magnetic fields the characteristic features in the conductance are related to the underlying eigenspectrum shells. When the number of modes in the leads is reduced more detailed structures within the shells due to single eigenlevels becomes discernible. At higher fields Landau level condensation is evident as well as the crossing of levels collapsing to the different Landau levels.

Place, publisher, year, edition, pages
2000. Vol. 6, no 1, 409-413 p.
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Engineering and Technology
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URN: urn:nbn:se:liu:diva-47692DOI: 10.1016/S1386-9477(99)00205-2OAI: oai:DiVA.org:liu-47692DiVA: diva2:268588
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Zozoulenko, IgorBerggren, Karl-Fredrik

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