Femtosecond quasiparticle relaxation dynamics and probe polarization anisotropy in YBa2Cu4O8

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dc.creatorDvorsek, D.
dc.creatorKabanov, V. V.
dc.creatorDemsar, J.
dc.creatorKarpinski, S. M. Kazakov J.
dc.creatorMihailovic, D.
dc.date2002-03-29
dc.date2002-05-27
dc.date.accessioned2026-07-07T10:19:13Z
dc.date.available2026-07-07T10:19:13Z
dc.descriptionFemtosecond pump probe experiments are reported on quasiparticle relaxation and recombination in YBa2Cu4O8 as a function of temperature and polarization. The data show a 2-component relaxation similar to YBa2Cu3O7-δ, one component being assocated with the superconducting transition, and the other with the pseudogap below T* The relaxation time tau_p associated with the pseudogap is found to be T-independent, while the relaxation time tau_g of the component obseved only below Tc exhibits a clear divergence near Tc. A strong polarisation anisotropy of the picosecond transient is observed below Tc which is attributed to the anisotropy of the probe transition matrix elements.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0203614
dc.identifierhttp://arxiv.org/abs/cond-mat/0203614
dc.identifierPhys. Rev. B 66, 020510 (2002)
dc.identifierdoi:10.1103/PhysRevB.66.020510
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/174431
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleFemtosecond quasiparticle relaxation dynamics and probe polarization anisotropy in YBa2Cu4O8
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