Modified heating theory of nonequilibrium superconductors

Journal Article · Sat Nov 01 04:00:00 EST 1975 · Physical Review, B: Solid State

DOI:https://doi.org/10.1103/PhysRevB.12.3667· OSTI ID:4123207

Parker, W. H.

Most recent experiments on nonequilibrium superconductors have been interpreted in terms of a theoretical model that assumes the recombination time of quasiparticles acts as a bottleneck in the quasiparticle relaxation process. However, in all experiments to date, the actual bottleneck is the escape time of recombination phonons from the superconductor. We show that all previous experiments can be interpreted in terms of a modified heating theory where the quasiparticles remain in both thermal and chemical equilibrium at an effective temperature T* greater than the helium-bath temperature. The temperature T* is determined from a consideration of only those phonons with energy greater than 2Δ. (auth)

• Research Organization: Department of Physics, University of California, Irvine, Irvine, California 92664
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-010591
• OSTI ID: 4123207
• Journal Information: Physical Review, B: Solid State, Journal Name: Physical Review, B: Solid State Journal Issue: 9 Vol. 12; ISSN 0556-2805; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

*SUPERCONDUCTORS-- QUASI PARTICLES
643901*
ENERGY GAP
N66200* --Physics (Low Temperature)--Superconductivity
PHONONS
RELAXATION
SUPERCONDUCTIVITY
THERMAL EQUILIBRIUM