Refrigeration of a dielectric membrane by superconductor/insulator/normal-metal/insulator/superconductor tunneling

Journal Article · Tue Apr 01 04:00:00 EST 1997 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.118721· OSTI ID:534422

Manninen, A J; Leivo, M M; Pekola, J P ^[1]

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1. Department of Physics, University of Jyvaeskylae, FIN-40351 Jyvaeskylae (Finland)

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{approx}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. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 534422
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 14 Vol. 70; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DIELECTRIC MATERIALS
MEMBRANES
REFRIGERATION
SUPERCONDUCTING JUNCTIONS
TEMPERATURE RANGE 0000-0013 K
TUNNEL EFFECT