Electronic refrigeration at the quantum limit

Tutkimustuotos: Lehtiartikkeli

Tutkijat

Organisaatiot

  • University of New South Wales
  • RAS - Institute of Solid State Physics

Kuvaus

We demonstrate quantum-limited electronic refrigeration of a metallic island in a low-temperature microcircuit. We show that matching the impedance of the circuit enables refrigeration at a distance, of about 50  μm in our case, through superconducting leads with a cooling power determined by the quantum of thermal conductance. In a reference sample with a mismatched circuit this effect is absent. Our results are consistent with the concept of electromagnetic heat transport. We observe and analyze the crossover between electromagnetic and quasiparticle heat flux in a superconductor.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli200801
Sivut1-4
Sivumäärä4
JulkaisuPhysical Review Letters
Vuosikerta102
Numero20
TilaJulkaistu - 18 toukokuuta 2009
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Tutkimusalat

  • electronic refrigeration, heat transport, quantum limit

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