New idea for a solid-state microrefrigerator operating near 100 mK

Conference · Mon Sep 18 04:00:00 EDT 2000

DOI:https://doi.org/10.1109/77.919425· OSTI ID:15003265

Ullom, J N; van den Berg, M L; Labov, S E

We propose a new design for a solid-state microrefrigerator based on Normal-Insulator-Superconductor (NIS) tunnel junctions. These devices are a promising means of providing continuous refrigeration from 0.3 to 0.1 K without vibration or moving parts. Previously, the area and cooling power of NIS refrigerators have been limited by heating of the superconducting electrode. This problem can be overcome by using a superconducting single crystal as both the substrate and superconducting electrode of the NIS junction. In this paper, we briefly explain the benefits of our new design and describe experimental progress towards building such a device.

• Research Organization: Lawrence Livermore National Lab., CA (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 15003265
• Report Number(s): UCRL-JC-137836
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DESIGN
ELECTRODES
HEATING
MINIATURIZATION
MONOCRYSTALS
REFRIGERATION
REFRIGERATORS
SUBSTRATES
SUPERCONDUCTIVITY