Radio-Frequency Single-Electron Refrigerator
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© 2007 American Physical Society (APS). http://www.aps.org/
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2007
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Mcode
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Language
en
Pages
037201/1-4
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
cyclic refrigeration, mesoscopic electron transport, electrons, tunneling, superconductors
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Citation
Pekola, Jukka & Giazotto, Francesco & Saira, Olli-Pentti. 2007. Radio-Frequency Single-Electron Refrigerator. Physical Review Letters. Volume 98, Issue 3. P. 037201/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.98.037201.
