High-energy scale revival and giant kink in the dispersion of a cuprate superconductor

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dc.creatorXie, B. P.
dc.creatorYang, K.
dc.creatorShen, D. W.
dc.creatorZhao, J. F.
dc.creatorOu, H. W.
dc.creatorWei, J.
dc.creatorGu, S. Y.
dc.creatorArita, M.
dc.creatorQiao, S.
dc.creatorNamatame, H.
dc.creatorTaniguchi, M.
dc.creatorKaneko, N.
dc.creatorEisaki, H.
dc.creatorYang, Z. Q.
dc.creatorFeng, D. L.
dc.date2006-07-18
dc.date.accessioned2026-07-07T07:55:24Z
dc.date.available2026-07-07T07:55:24Z
dc.descriptionIn the present photoemission study of a cuprate superconductor Bi1.74Pb0.38Sr1.88CuO6+delta, we discovered a large scale dispersion of the lowest band, which unexpectedly follows the band structure calculation very well. The incoherent nature of the spectra suggests that the hopping-dominated dispersion occurs possibly with the assistance of local spin correlations. A giant kink in the dispersion is observed, and the complete self-energy containing all interaction information is extracted for a doped cuprate in the low energy region. These results recovered significant missing pieces in our current understanding of the electronic structure of cuprates.
dc.description4 pages, 3 figures, submitted to Phys. Rev. Lett. on May 21, 2006
dc.identifierhttps://arxiv.org/abs/cond-mat/0607450
dc.identifierhttp://arxiv.org/abs/cond-mat/0607450
dc.identifierPhys. Rev. Lett. 98, 147001 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.147001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126958
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleHigh-energy scale revival and giant kink in the dispersion of a cuprate superconductor
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