Normal State Spectral Lineshapes of Nodal Quasiparticles in Single Layer Bi2201 Superconductor

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dc.creatorLanzara, A.
dc.creatorBogdanov, P. V.
dc.creatorZhou, X. J.
dc.creatorKaneko, N.
dc.creatorEisaki, H.
dc.creatorGreven, M.
dc.creatorHussain, Z.
dc.creatorShen, Z. -X.
dc.date2004-12-07
dc.date.accessioned2026-07-07T03:02:33Z
dc.date.available2026-07-07T03:02:33Z
dc.descriptionA detailed study of the normal state photoemission lineshapes and quasiparticle dispersion for the single layer Bi$_2$Sr$_{2-x}$La$_x$CuO$_{6+δ}$ (Bi2201) superconductor is presented. We report the first experimental evidence of a double peak structure and a dip of spectral intensity in the energy distribution curves (EDCs) along the nodal direction. The double peak structure is well identified in the normal state, up to ten times the critical temperature. As a result of the same self-energy effect, a strong mass renormalization of the quasiparticle dispersion, i.e. kink, and an increase of the quasiparticle lifetime in the normal state are also observed. Our results provide unambiguous evidence on the existence of bosonic excitation in the normal state, and support a picture where nodal quasiparticles are strongly coupled to the lattice.
dc.description4 pages, proceedings of SNS conference
dc.identifierhttps://arxiv.org/abs/cond-mat/0412178
dc.identifierhttp://arxiv.org/abs/cond-mat/0412178
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25432
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleNormal State Spectral Lineshapes of Nodal Quasiparticles in Single Layer Bi2201 Superconductor
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