Electronic refrigeration at the quantum limit

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Electronic refrigeration at the quantum limit. / Timofeev, Andrey; Helle, Meri; Meschke, Matthias; Möttönen, Mikko; Pekola, Jukka.

In: Physical Review Letters, Vol. 102, No. 20, 200801, 18.05.2009, p. 1-4.

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@article{fe110021645b48d8b74320e917f4943d,
title = "Electronic refrigeration at the quantum limit",
abstract = "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.",
keywords = "electronic refrigeration, heat transport, quantum limit, electronic refrigeration, heat transport, quantum limit, electronic refrigeration, heat transport, quantum limit",
author = "Andrey Timofeev and Meri Helle and Matthias Meschke and Mikko M{\"o}tt{\"o}nen and Jukka Pekola",
year = "2009",
month = "5",
day = "18",
doi = "10.1103/PhysRevLett.102.200801",
language = "English",
volume = "102",
pages = "1--4",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "20",

}

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TY - JOUR

T1 - Electronic refrigeration at the quantum limit

AU - Timofeev, Andrey

AU - Helle, Meri

AU - Meschke, Matthias

AU - Möttönen, Mikko

AU - Pekola, Jukka

PY - 2009/5/18

Y1 - 2009/5/18

N2 - 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.

AB - 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.

KW - electronic refrigeration

KW - heat transport

KW - quantum limit

KW - electronic refrigeration

KW - heat transport

KW - quantum limit

KW - electronic refrigeration

KW - heat transport

KW - quantum limit

U2 - 10.1103/PhysRevLett.102.200801

DO - 10.1103/PhysRevLett.102.200801

M3 - Article

VL - 102

SP - 1

EP - 4

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 20

M1 - 200801

ER -

ID: 3383950