Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling
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© 2004 AIP Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the authors and the American Institute of Physics. The following article appeared in Journal of Applied Physics, Volume 95, Issue 12 and may be found at http://scitation.aip.org/content/aip/journal/jap/95/12/10.1063/1.1751231
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2004
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Mcode
Degree programme
Language
en
Pages
8059-8062
Series
Journal of Applied Physics, Volume 95, Issue 12
Abstract
We study a circuit where a mesoscopic Josephson junction(JJ) is embedded in an environment consisting of a large bias resistor and a normal-insulator-superconductor (NIS) junction. The effective Coulomb blockade of the JJ can be controlled by the tunneling current through the NIS junction leading to transistor-like characteristics. We show using phase correlation theory and numerical simulations that substantial current gain with low current noise (in≲1 fA/√Hz) and noise temperature (≲0.1 K) can be achieved. Good agreement between our numerical simulations and experimental results is obtained.Description
Keywords
Josephson junctions, normal-insulator-superconductors, Coulomb blockades
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Citation
Hassel, J. & Seppä, Heikki & Delahaye, Julien & Hakonen, Pertti J. 2004. Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling. Journal of Applied Physics. Volume 95, Issue 12. 8059-8062. ISSN 0021-8979 (printed). DOI: 10.1063/1.1751231