Josephson tunnel junction controlled by quasiparticle injection
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© 2005 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 Journal of Applied Physics, Volume 97, Issue 2 and may be found at http://scitation.aip.org/content/aip/journal/jap/97/2/10.1063/1.1833576
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Authors
Date
2005
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Language
en
Pages
023908/1-4
Series
Journal of Applied Physics, Volume 97, Issue 2
Abstract
A Josephson tunnel junction transistor based on quasiparticle injection is proposed. Its operationrelies on the manipulation of the electron distribution in one of the junction electrodes. This isaccomplished by injecting quasiparticle current through the junction electrode by two additionaltunnel-coupled superconductors. Both large supercurrent enhancement and fast quenching can beachieved with respect to equilibrium by varying quasiparticle injection for proper temperatureregimes and suitable superconductor combinations. Combined with large power gain, this makes thedevice attractive for applications where reduced noise and low-power dissipation are required.Description
Keywords
Josephson junctions, quasiparticle injection, junction electrodes, collective excitations, transistors, superconductors, superconductivity
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Citation
Giazotto, Francesco & Pekola, Jukka. 2005. Josephson tunnel junction controlled by quasiparticle injection. Journal of Applied Physics. Volume 97, Issue 2. 023908/1-4. ISSN 0021-8979 (printed). DOI: 10.1063/1.1833576.