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17 Jan 2011

Volume 98, Issue 3, Articles (03xxxx)

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Appl. Phys. Lett. 98, 031101 (2011); http://dx.doi.org/10.1063/1.3529469 (3 pages)

Sinan Balci, Askin Kocabas, Coskun Kocabas, and Atilla Aydinli
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Cooling electrons from 1 to 0.4 K with V-based nanorefrigerators

O. Quaranta, P. Spathis, F. Beltram, and F. Giazotto

Appl. Phys. Lett. 98, 032501 (2011); http://dx.doi.org/10.1063/1.3544058 (3 pages) | Cited 2 times

Online Publication Date: 19 January 2011

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The fabrication and operation of V-based superconducting nanorefrigerators is reported. Specifically, electrons in an Al island are cooled, thanks to hot-quasiparticle extraction provided by tunnel-coupled V electrodes. Electronic temperature reduction down to 400 mK starting from 1 K is demonstrated with an estimated cooling power of ∼ 20 pW at 1 K for a junction area of 0.3 μm2.
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85.25.-j Superconducting devices
85.35.-p Nanoelectronic devices
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