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 T c and interpreted with the aid of a simple model which considers the anisotropy of the probe transition matrix elements.
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Dvorsek, D., Kabanov, V.V., Demsar, J. et al. Femtosecond Pump-Probe Polarization Dependent Investigation of Relaxation Dynamics in YBa2Cu4O8 . Journal of Superconductivity 17, 89–92 (2004). https://doi.org/10.1023/B:JOSC.0000011847.78265.4a
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DOI: https://doi.org/10.1023/B:JOSC.0000011847.78265.4a