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Journal of Superconductivity

, Volume 17, Issue 1, pp 89–92 | Cite as

Femtosecond Pump-Probe Polarization Dependent Investigation of Relaxation Dynamics in YBa2Cu4O8

  • D. Dvorsek
  • V. V. Kabanov
  • J. Demsar
  • J. Karpinski
  • S. M. Kazakov
  • D. Mihailovic
Article
  • 62 Downloads

Abstract

Femtosecond pump probe experiments are reported on quasiparticle relaxation and recombination in YBa2Cu4O8 as a function of temperature and polarization. We compare our results with the data obtained on YBa2Cu3O7−δ and show that similar two-component relaxation is present in both cases. A strong polarization anisotropy of the picosecond response is observed below Tc and interpreted with the aid of a simple model which considers the anisotropy of the probe transition matrix elements.

high-temperature superconductivity femtosecond spectroscopy carrier relaxation dynamics 

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Copyright information

© Plenum Publishing Corporation 2004

Authors and Affiliations

  • D. Dvorsek
    • 1
  • V. V. Kabanov
    • 1
  • J. Demsar
    • 1
    • 2
  • J. Karpinski
    • 3
  • S. M. Kazakov
    • 3
  • D. Mihailovic
    • 1
  1. 1.Jozef Stefan InstituteLjubljanaSlovenia
  2. 2.Los Alamos National LaboratoryLos Alamos, New Mexico
  3. 3.Institut fur FestkorperphysikETH ZurichSwitzerland

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