Manipulation and generation of supercurrent in out-of-equilibrium Josephson tunnel nanojunctions
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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2008-08-14
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
4
1-4
1-4
Series
PHYSICAL REVIEW LETTERS, Volume 101, issue 7
Abstract
We demonstrate experimentally the manipulation of supercurrent in Al−AlOx−Ti Josephson tunnel junctions by injecting quasiparticles in a Ti island from two additional tunnel-coupled Al superconducting reservoirs. Both supercurrent enhancement and quenching with respect to equilibrium are achieved. We demonstrate cooling of the Ti line by quasiparticle injection from the normal state deep into the superconducting phase. A model based on heat transport and the nonmonotonic current-voltage characteristic of a Josephson junction satisfactorily accounts for our findings.Description
Keywords
equilibrium, Josephson tunnel junction, supercurrent
Other note
Citation
Tirelli , S , Savin , A , Garcia , C P , Pekola , J , Beltram , F & Giazotto , F 2008 , ' Manipulation and generation of supercurrent in out-of-equilibrium Josephson tunnel nanojunctions ' , Physical Review Letters , vol. 101 , no. 7 , 077004 , pp. 1-4 . https://doi.org/10.1103/PhysRevLett.101.077004
