Relaxation time of the order parameter in a high-temperature superconductor
Abstract
We present femtosecond time-resolved measurements on the high-Tc superconductor Tl2Ba2Ca2Cu3O10. At temperatures below Tc, we observe a relaxation process which is distinct from the equilibration of hot carriers in the normal state. Our results demonstrate an increasing relaxation rate as the superconducting gap opens. This is consistent with the behavior of conventional metallic superconductors.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 1990
- DOI:
- Bibcode:
- 1990PhRvL..65.3445E
- Keywords:
-
- Carrier Transport (Solid State);
- High Temperature Superconductors;
- Mixed Oxides;
- Relaxation Time;
- Barium Oxides;
- Calcium Oxides;
- Copper Oxides;
- Superconductivity;
- Thallium Compounds;
- Solid-State Physics;
- 74.40.+k;
- 73.50.Gr;
- 78.47.+p;
- Fluctuations;
- Charge carriers: generation recombination lifetime trapping mean free paths;
- Time-resolved optical spectroscopies and other ultrafast optical measurements in condensed matter