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Micrometre-scale refrigerators
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Muhonen, Juha, Meschke, Matthias and Pekola, Jukka P. (2012) Micrometre-scale refrigerators. Reports on Progress in Physics, Vol.75 (No.4). Article no. 046501. doi:10.1088/0034-4885/75/4/046501 ISSN 0034-4885.
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Official URL: http://dx.doi.org/10.1088/0034-4885/75/4/046501
Abstract
A superconductor with a gap in the density of states or a quantum dot with discrete energy levels is a central building block in realizing an electronic on-chip cooler. They can work as energy filters, allowing only hot quasiparticles to tunnel out from the electrode to be cooled. This principle has been employed experimentally since the early 1990s in investigations and demonstrations of micrometre-scale coolers at sub-kelvin temperatures. In this paper, we review the basic experimental conditions in realizing the coolers and the main practical issues that are known to limit their performance. We give an update of experiments performed on cryogenic micrometre-scale coolers in the past five years.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Reports on Progress in Physics | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 0034-4885 | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | Vol.75 | ||||
Number: | No.4 | ||||
Page Range: | Article no. 046501 | ||||
DOI: | 10.1088/0034-4885/75/4/046501 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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