Micrometre-scale refrigerators

被引：155

作者：

Muhonen, Juha T. ^{[1
,2
]}

Meschke, Matthias ^{[1
]}

Pekola, Jukka P. ^{[1
]}

机构：

[1] Aalto Univ, Sch Sci, Low Temp Lab, Aalto 00076, Finland

[2] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

来源：

REPORTS ON PROGRESS IN PHYSICS | 2012年 / 75卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

HEAVILY-DOPED SILICON; ON-INSULATOR FILM; QUASI-PARTICLE; THERMAL-CONDUCTIVITY; TUNNEL-JUNCTIONS; SUPERCONDUCTOR; THERMOMETRY; TRANSISTOR; ELECTRONS;

D O I：

10.1088/0034-4885/75/4/046501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：23

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