Intrinsic quasiparticle lifetime in superconducting aluminum
K. Norowski, M. Foltyn, A. Savin, M. Zgirski
DOI 10.1103/wsqx-9bgf · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We use time-resolved thermometry to monitor the decay of nonequilibrium quasiparticles in superconducting Al in the temperature range from 0.3 to 1.2K. The quasiparticle lifetime at higher temperatures (T>0.7K) agrees well with the calculated energy flow from electrons to phonons, but at lower temperatures it is significantly shorter than the theory predicts. We show well-defined internal equilibrium of quasiparticle system in the studied thermal transients, which implicates that quasiparticle-quasiparticle relaxation is much faster than electron-phonon interaction.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.2 | Pressure not reported | unknown |
Similar papers
Interplay between nonequilibrium quasiparticle relaxation and dynamic supercurrent enhancement in aluminum superconducting constriction junctions
similarity 0.96Shung-Kang Koh et al.
Source status unknown — claims are unverified
Microscopic charging and in-gap states in superconducting granular aluminum
similarity 0.95Fang Yang et al.
Source status unknown — claims are unverified
Quasiparticle Relaxation in Optically Excited High-Q Superconducting Resonators
similarity 0.95R. Barends et al.
Source status unknown — claims are unverified
Quasiparticle response of superconducting aluminum to electromagnetic radiation
similarity 0.95Katrin Steinberg et al.
Source status unknown — claims are unverified
Volume dependence of microwave-induced excess quasiparticles in superconducting resonators
similarity 0.95Steven A.H. de Rooij et al.
Source status unknown — claims are unverified
Observation of individual macroscopic quantum tunneling events in superconducting nanowires
similarity 0.95Meenakshi Singh & Moses H. W. Chan
Source status unknown — claims are unverified