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Few electron double quantum dots in InAs/InP nanowire heterostructures

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Author

Summary, in English

We report on fabrication of double quantum dots in catalytically grown InAs/InP nanowire heterostructures. In the few-electron regime, starting with both dots empty, our low-temperature transport measurements reveal a clear shell structure for sequential charging of the larger of the two dots with up to 12 electrons. The resonant current through the double dot is found to depend on the orbital coupling between states of different radial symmetry. The charging energies are well described by a capacitance model if next-neighbor capacitances are taken into account.

Publishing year

2007

Language

English

Pages

243-246

Publication/Series

Nano Letters

Volume

7

Issue

2

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Nano Technology
  • Condensed Matter Physics

Status

Published

Research group

  • Linne Center for Nanoscience and Quantum Engineering

ISBN/ISSN/Other

  • ISSN: 1530-6992