Heat Transistor: Demonstration of Gate-Controlled Electronic Refrigeration

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2007
Major/Subject
Mcode
Degree programme
Language
en
Pages
027203/1-4
Series
Physical Review Letters, Volume 99, Issue 2
Abstract
We present experiments on a superconductor–normal-metal electron refrigerator in a regime where single-electron charging effects are significant. The system functions as a heat transistor; i.e., the heat flux out from the normal-metal island can be controlled with a gate voltage. A theoretical model developed within the framework of single-electron tunneling provides a full quantitative agreement with the experiment. This work serves as the first experimental observation of Coulombic control of heat transfer and, in particular, of refrigeration in a mesoscopic system.
Description
Keywords
refrigerators, electrons, superconductors, heat transistors, tunneling
Other note
Citation
Saira, Olli-Pentti & Meschke, Matthias & Giazotto, Francesco & Savin, Alexander M. & Möttönen, Mikko & Pekola, Jukka. 2007. Heat Transistor: Demonstration of Gate-Controlled Electronic Refrigeration. Physical Review Letters. Volume 99, Issue 2. 027203/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.99.027203.