Exploring the Dynamics of Superconductors by Time-Resolved Far-Infrared Spectroscopy
G. L. Carr, R. P. S. M. Lobo, J. LaVeigne, D. H. Reitze, D. B. Tanner
DOI 10.1103/PhysRevLett.85.3001 · Physical Review Letters
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 have examined the recombination of excess quasiparticles in superconducting Pb by time-resolved far-infrared spectroscopy using a pulsed synchrotron source. The energy gap shift calculated by Owen and Scalapino [Phys. Rev. Lett. 28, 1559 (1972)] is directly observed, as is the associated reduction in the Cooper pair density. The relaxation process involves a two-component decay; the faster (∼200ps) is associated with the actual (effective) recombination process, while the slower ( ∼10 to 100 ns) is due to heat transport across the film/substrate interface. The temperature dependence of the recombination process between 0.5Tc and 0.85Tc is in good agreement with theory.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.2 | Pressure not reported | unknown |
Similar papers
Picosecond studies of nonequilibrium flux dynamics in a superconductor
similarity 0.96M. R. Freeman
Source status unknown — claims are unverified
Scaling of the superfluid density in high-temperature superconductors
similarity 0.96C. C. Homes et al.
Source status unknown — claims are unverified
Photoinduced time-resolved electrodynamics of superconducting metals and alloys
similarity 0.96R. P. S. M. Lobo et al.
Source status unknown — claims are unverified
Microscopic mechanism of electric-field-induced superconductivity suppression in metallic thin films
similarity 0.96Alessio Zaccone et al.
Source status unknown — claims are unverified
Microscopic investigation of the flux dynamics of type-II superconducting films
similarity 0.95S. T. Stoddart et al.
Source status unknown — claims are unverified
Coexistence and Coupling of Superconductivity and Magnetism in Thin Film Structures
similarity 0.95A. J. Drew et al.
Source status unknown — claims are unverified