Radio-frequency single-electron refrigerator

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Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Author
Date
2007-01-16
Department
Department of Applied Physics
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Mcode
Degree programme
Language
en
Pages
4
1-4
Series
PHYSICAL REVIEW LETTERS, Volume 98, issue 3
Abstract
We propose a cyclic refrigeration principle based on mesoscopic electron transport. Synchronous sequential tunneling of electrons in a Coulomb-blockaded device, a normal metal-superconductor single-electron box, results in a cooling power of ∼kBT×f at temperature T over a wide range of cycle frequencies f. Electrostatic work, done by the gate voltage source, removes heat from the Coulomb island with an efficiency of ∼kBT/Δ, where Δ is the superconducting gap parameter. The performance is not affected significantly by nonidealities, for instance by offset charges. We propose ways of characterizing the system and of its practical implementation.
Description
Keywords
mesoscopic electron transport, normal metal-superconductor, single-electron refrigerator
Other note
DOI
10.1103/PhysRevLett.98.037201
Citation
Pekola , J , Giazotto , F & Saira , O-P 2007 , ' Radio-frequency single-electron refrigerator ' , Physical Review Letters , vol. 98 , no. 3 , 037201 , pp. 1-4 . https://doi.org/10.1103/PhysRevLett.98.037201
Permanent link to this item
https://urn.fi/URN:NBN:fi:aalto-201805222307
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[article-cris] Perustieteiden korkeakoulu / SCI