Quasiparticle behavior in tunnel junction refrigerators
Conference
·
OSTI ID:14306
We present simulations of quasiparticle creation, propagation, and loss in the superconducting electrode of a normal-insulator-superconductor tunnel junction refrigerator. We calculate the electronic temperature in the superconducting electrode from self-consistent solutions to the diffusion equation. We then calculate the power load on the normal electrode due to recombination phonons and the reduction in cooling power due to the elevated temperature of the superconductor. Our calculations explain the degraded cooling performance observed in 15-20 pm sized Ag/AlOx/Al junctions.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Defense Programs (DP) (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 14306
- Report Number(s):
- UCRL-JC-134803; YN0100000; YN0100000; TRN: US0110995
- Resource Relation:
- Conference: Low Temperature Physics Conference 22, Helsinki (FI), 08/05/1999--08/10/1999; Other Information: PBD: 8 Jun 1999
- Country of Publication:
- United States
- Language:
- English
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