Evidence for two coupled subsystems in the superconducting state of (formula presented)

Academic Article


  • We used a pump-probe technique to measure the transient change of optical reflectivity of both (formula presented) of various dopings, and slightly underdoped (formula presented) and (formula presented) thin films. For the (formula presented) films, our data demonstrate the coexistence, in the superconducting state, of two coupled subsystems with different relaxation times and different contributions to the optical reflectivity. One subsystem is associated with the superconducting phase. By contrast, the data from (formula presented) and (formula presented) shows that the coupling between the two subsystems is weak or absent. © 2001 The American Physical Society.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Si W; Ariosa D; Lüpke G; Rast S; Onellion M; Schneider ML; Xi XX; Zeng XH; Pavuna D; Abrecht M
  • Volume

  • 64
  • Issue

  • 21