Refrigeration of a dielectric membrane by superconductor/insulator/normalmetal/insulator/superconductor tunneling

Antti J. Manninen, M. M. Leivo, J.P. Pekola

Research output: Contribution to journalArticleScientificpeer-review

41 Citations (Scopus)

Abstract

We have applied tunneling of electrons between a normal metal and a superconductor to refrigerate a thin dielectric membrane attached to the normal electrode of a superconductor/ insulator/normal-metal/insulator/superconductor (SINIS) structure. Starting from T≈200 mK, a decrease in temperature of several mK was observed, measured by a separate thermometer on the membrane. It should be straightforward to improve the refrigerator performance to the level of the recently demonstrated SINIS electron cooling method, such that the drop in the lattice temperature would be more than an order of magnitude larger.
Original languageEnglish
Pages (from-to)1885-1887
JournalApplied Physics Letters
Volume70
Issue number14
DOIs
Publication statusPublished - 7 Apr 1997
MoE publication typeA1 Journal article-refereed

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