Electron counting in a silicon single-electron pump

Tuomo Tanttu, Alessandro Rossi, Kuan Yen Tan, Kukka Emilia Huhtinen, Kok Wai Chan, Mikko Möttönen, Andrew S. Dzurak

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We report electron counting experiments in a silicon metal-oxide-semiconductor quantum dot architecture which has been previously demonstrated to generate a quantized current in excess of 80 pA with uncertainty below 30 parts per million. Single-shot detection of electrons pumped into a reservoir dot is performed using a capacitively coupled single-electron transistor. We extract the full probability distribution of the transfer of n electrons per pumping cycle for We find that the probabilities extracted from the counting experiment are in agreement with direct current measurements in a broad range of dc electrochemical potentials of the pump. The electron counting technique is also used to confirm the improving robustness of the pumping mechanism with increasing electrostatic confinement of the quantum dot.

LanguageEnglish
Article number103030
Number of pages7
JournalNew Journal of Physics
Volume17
Issue number10
DOIs
Publication statusPublished - 16 Oct 2015

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counting
pumps
silicon
pumping
electrons
quantum dots
single electron transistors
silicon oxides
metal oxide semiconductors
shot
direct current
electrostatics
cycles

Keywords

  • charge pumping
  • electron counting
  • quantum dots
  • single-electron pump

Cite this

Tanttu, T., Rossi, A., Tan, K. Y., Huhtinen, K. E., Chan, K. W., Möttönen, M., & Dzurak, A. S. (2015). Electron counting in a silicon single-electron pump. New Journal of Physics, 17(10), [103030]. https://doi.org/10.1088/1367-2630/17/10/103030
Tanttu, Tuomo ; Rossi, Alessandro ; Tan, Kuan Yen ; Huhtinen, Kukka Emilia ; Chan, Kok Wai ; Möttönen, Mikko ; Dzurak, Andrew S. / Electron counting in a silicon single-electron pump. In: New Journal of Physics. 2015 ; Vol. 17, No. 10.
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Tanttu, T, Rossi, A, Tan, KY, Huhtinen, KE, Chan, KW, Möttönen, M & Dzurak, AS 2015, 'Electron counting in a silicon single-electron pump' New Journal of Physics, vol. 17, no. 10, 103030. https://doi.org/10.1088/1367-2630/17/10/103030

Electron counting in a silicon single-electron pump. / Tanttu, Tuomo; Rossi, Alessandro; Tan, Kuan Yen; Huhtinen, Kukka Emilia; Chan, Kok Wai; Möttönen, Mikko; Dzurak, Andrew S.

In: New Journal of Physics, Vol. 17, No. 10, 103030, 16.10.2015.

Research output: Contribution to journalArticle

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AU - Tanttu, Tuomo

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Tanttu T, Rossi A, Tan KY, Huhtinen KE, Chan KW, Möttönen M et al. Electron counting in a silicon single-electron pump. New Journal of Physics. 2015 Oct 16;17(10). 103030. https://doi.org/10.1088/1367-2630/17/10/103030