Experimental Observation of the Relaxation Time of the Order Parameter in Superconductors
1976; American Physical Society; Volume: 36; Issue: 8 Linguagem: Inglês
10.1103/physrevlett.36.429
ISSN1092-0145
Autores Tópico(s)Advanced Condensed Matter Physics
ResumoWe have measured directly the relaxation time $\ensuremath{\tau}$ for the superconducting energy gap. We show that near the superconducting transition temperature ${\ensuremath{\tau}}_{c}$ the relaxation time diverges as predicted by several authors. By also measuring the equilibrium gap $\ensuremath{\Delta}$ we find $\ensuremath{\tau}\ensuremath{\propto}{\ensuremath{\Delta}}^{\ensuremath{-}1}$ very near ${T}_{c}$ in agreement with the calculations of Schmid and Sh\"on.
Referência(s)