Experimental realization of a Coulomb blockade refrigerator
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© 2014 American Physical Society (APS). http://www.aps.org/
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2014
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Mcode
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Language
en
Pages
201407/1-5
Series
Physical Review B, Volume 90, Issue 20
Abstract
We present an experimental realization of a Coulomb blockade refrigerator (CBR) based on a single-electron transistor (SET). In the present structure, the SET island is interrupted by a superconducting inclusion to permit charge transport while preventing heat flow. At certain values of the bias and gate voltages, the current through the SET cools one of the junctions. The measurements follow the theoretical model down to ∼80 mK, which was the base temperature of the current measurements. The observed cooling increases rapidly with decreasing temperature, in agreement with the theory, reaching about a 15 mK drop at the base temperature. The CBR appears as a promising electronic cooler at temperatures well below 100 mK.Description
Keywords
Coulomb blockade refrigerator, single-electron transistor
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Citation
Feshchenko, A. V. & Koski, J. V. & Pekola, Jukka. 2014. Experimental realization of a Coulomb blockade refrigerator. Physical Review B. Volume 90, Issue 20. P. 201407/1-5. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.90.201407.