Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Practical Aspects of Counting Electrons with a Single-Electron Tunneling Pump

Published

Author(s)

Mark W. Keller

Abstract

Various aspects of the single-electron tunneling pumps based on Al junctions studied at NIST over the past 15 years are covered in this review. The operation of a pump is described and some important error mechanisms are summarized, which allows for a sketch of the basic pump parameters required for metrological accuracy. Fabrication of pumps, filtering of leads in the cryostat, and the electronics used to drive the pump are described next. The shuttle error technique that allows measurment of very rare errors is then described, and some outstanding questions about limitations of pumps based on Al junctions are mentioned. A detailed algorithm for cancelling the cross capacitance in a pump is described in an appendix.
Citation
European Physical Journal B
Volume
172
Issue
1

Keywords

single-electron tunneling

Citation

Keller, M. (2009), Practical Aspects of Counting Electrons with a Single-Electron Tunneling Pump, European Physical Journal B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32851 (Accessed April 21, 2024)
Created June 21, 2009, Updated January 27, 2020