Single electron pumping in InAs nanowire double quantum dots
Författare
Summary, in English
Closely spaced local gate electrodes are used to electrically define a double quantum dot along an InAs nanowire crystal. By applying a periodic pulse sequence to two plunger gate electrodes controlling the double quantum dot charge configuration, the device is operated as a single electron pump. The authors find that within measurement accuracy, the pumping current equals one electron per cycle for frequencies up to 2 MHz, demonstrating the suitability of nanowire based quantum dots for pumping applications.
Avdelning/ar
Publiceringsår
2007
Språk
Engelska
Sidor
1-052109
Publikation/Tidskrift/Serie
Applied Physics Letters
Volym
91
Issue
5
Dokumenttyp
Artikel i tidskrift
Förlag
American Institute of Physics (AIP)
Ämne
- Condensed Matter Physics
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0003-6951