Few electron double quantum dots in InAs/InP nanowire heterostructures

Research output: Contribution to journalArticle

Abstract

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.

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Subject classification (UKÄ) – MANDATORY

  • Nano Technology
Original languageEnglish
Pages (from-to)243-246
JournalNano Letters
Volume7
Issue number2
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes

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Jonas Pedersen, 2008, Department of Physics, Lund University. 164 p.

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