A robust platform cooled by superconducting electronic refrigerators

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© 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at http://scitation.aip.org/content/aip/journal/apl/106/1/10.1063/1.4905440
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School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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012601/1-4

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Applied Physics Letters, Volume 106, Issue 1

Abstract

A biased tunnel junction between a superconductor and a normal metal can cool the latter electrode. Based on a recently developed cooler with high power and superior performance, we have integrated it with a dielectric silicon nitride membrane, and cooled phonons from 305 mK down to 200 mK. Without perforation and covered under a thin alumina layer, the membrane is rigorously transformed into a cooling platform that is robust and versatile for multiple practical purposes. We discussed our results and possibilities to further improve the device.

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Nguyen, H. Q. & Meschke, M. & Pekola, Jukka. 2015. A robust platform cooled by superconducting electronic refrigerators. Applied Physics Letters. Volume 106, Issue 1. P. 012601/1-4. ISSN 0003-6951 (printed). DOI: 10.1063/1.4905440.