Recombination-limited energy relaxation in a Bardeen-Cooper-Schrieffer superconductor

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • Landau Institute for Theoretical Physics
  • Russian Academy of Sciences
  • CNR
  • Scuola Normale Superiore di Pisa

Kuvaus

We study quasiparticle energy relaxation at subkelvin temperatures by injecting hot electrons into an Al island and measuring the energy flux from quasiparticles into phonons both in the superconducting and in the normal state. The data show strong reduction of the flux at low temperatures in the superconducting state, in qualitative agreement with the theory for clean superconductors. However, quantitatively the energy flux exceeds the theoretical predictions both in the superconducting and in the normal state, suggesting an enhanced or additional relaxation process.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli017003
Sivut1-4
Sivumäärä4
JulkaisuPhysical Review Letters
Vuosikerta102
Numero1
TilaJulkaistu - 1 heinäkuuta 2009
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Tutkimusalat

  • Cooper pair, quasiparticle energy relaxation, superconductor

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