Phase-tunable colossal magnetothermal resistance in ferromagnetic Josephson valves (Articolo in rivista)

Type
Label
  • Phase-tunable colossal magnetothermal resistance in ferromagnetic Josephson valves (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.4800578 (literal)
Alternative label
  • Giazotto, F. and Bergeret, F. S. (2013)
    Phase-tunable colossal magnetothermal resistance in ferromagnetic Josephson valves
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Giazotto, F. and Bergeret, F. S. (literal)
Pagina inizio
  • 132603 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 102 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 13 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Giazotto, F (Reprint Author), Ist Nanosci CNR, NEST, I-56127 Pisa, Italy. Giazotto, F., Ist Nanosci CNR, NEST, I-56127 Pisa, Italy. Giazotto, F., Scuola Normale Super Pisa, I-56127 Pisa, Italy. Bergeret, F. S., Ctr Mixto CSIC UPV EHU, Ctr Fis Mat CFM MPC, E-20018 San Sebastian, Spain. Bergeret, F. S., DIPC, E-20018 San Sebastian, Spain. Bergeret, F. S., Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany. (literal)
Titolo
  • Phase-tunable colossal magnetothermal resistance in ferromagnetic Josephson valves (literal)
Abstract
  • We propose a heat valve based on the interplay between thermal transport and proximity-induced exchange splitting in Josephson tunnel junctions. We demonstrate that the junction electron heat conductance strongly depends on the relative alignment of the exchange fields induced in the superconductors. Colossal magnetothermal resistance ratios as large as similar to 10(7)% are predicted to occur under proper temperature and phase conditions, as well as suitable ferromagnet-superconductor combinations. Moreover, the quantum phase tailoring, intrinsic to the Josephson coupling, offers an additional degree of freedom for the control of the heat conductance. Our predictions for the phase-coherent and spin-dependent tuning of the thermal flux can provide a useful tool for heat management at the nanoscale. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4800578] (literal)
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