Nanoampere pumping of Cooper pairs

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© 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at http://scitation.aip.org/content/aip/journal/apl/90/8/10.1063/1.2709967
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Journal Title

Journal ISSN

Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2007

Major/Subject

Mcode

Degree programme

Language

en

Pages

082102/1-3

Series

Applied Physics Letters, Volume 90, Issue 8

Abstract

The authors have employed a tunable Cooper-pair transistor, the sluice, with radio frequency control to pump current over a resistive circuit. They find that the charge transferred per pumping cycle can be controlled with the resolution of a single Cooper pair up to hundreds of pairs. The achieved nanoampere current features more than an order of magnitude improvement over the previously reported results and it is close to the theoretical maximum value for the measured sample.

Description

Keywords

Cooper pair, nanoampere pumping, superconducting quantum interference devices, charge transfer, Josephson junctions, tunneling, charged currents

Other note

Citation

Vartiainen, Juha J. & Möttönen, Mikko & Pekola, Jukka & Kemppinen, Antti. 2007. Nanoampere pumping of Cooper pairs. Applied Physics Letters. Volume 90, Issue 8. P. 082102/1-3. ISSN 0003-6951 (printed). DOI: 10.1063/1.2709967.