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Cooper pair formation dynamics in Bi2Sr2CaCu2O8+delta

  • Author(s): Kaindl, R.A.
  • Carnahan, M.A.
  • Orenstein, J.
  • Chemla, D.S.
  • Oh, S.
  • Eckstein, J.N.
  • et al.
Abstract

We utilize ultrafast terahertz pulses to monitor the carrier dynamics in the high-TC superconductor Bi2Sr2CaCu2O8+delta. The temperature, density and timedependence distinctly exposes a bimolecular recombination process of quasiparticles which underlies formation of Cooper pairs.

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