A silicon single-electron pump with tunable electrostatic confinement

A. Rossi, T. Tanttu, K. Y. Tan, R. Zhao, K. W. Chan, I. Iisakka, G. C. Tettamanzi, S. Rogge, A. S. Dzurak, Mikko Möttönen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Nanoscale single-electron pumps could serve as the realization of a new quantum standard of electrical current. Here, a silicon quantum dot with tunable tunnel barriers is used as a source of quantized current. By controlling the electrostatic confinement of the dot via purposely engineered gate electrodes, we show that the stability of the pumping mechanisms can be dramatically enhanced. Our pump can produce a current in excess of 80 pA with experimentally determined relative uncertainty lower than 50 parts per million (ppm).

Original languageEnglish
Title of host publicationSilicon Nanoelectronics Workshop, SNW 2014
PublisherIEEE
ISBN (Electronic)978-1-4799-5677-7
DOIs
Publication statusPublished - 4 Dec 2015
MoE publication typeA4 Conference publication
EventIEEE Silicon Nanoelectronics Workshop - Honolulu, United States
Duration: 8 Jun 20149 Jun 2014
Conference number: 19

Publication series

NameIEEE Silicon Nanoelectronics Workshop
ISSN (Print)2161-4636

Workshop

WorkshopIEEE Silicon Nanoelectronics Workshop
Abbreviated titleSWN
Country/TerritoryUnited States
CityHonolulu
Period08/06/201409/06/2014
OtherSatellite Workshop of VLSI Symposia

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