Fine Details of the Nodal Electronic Excitations in Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$

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dc.creatorValla, T.
dc.creatorKidd, T. E.
dc.creatorRameau, J. D.
dc.creatorNoh, H. -J.
dc.creatorGu, G. D.
dc.creatorJohnson, P. D.
dc.creatorYang, H. -B.
dc.creatorDing, H.
dc.date2005-12-28
dc.date.accessioned2026-07-07T06:53:44Z
dc.date.available2026-07-07T06:53:44Z
dc.descriptionVery high energy resolution photoemission experiments on high quality samples of optimally doped Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ show new features in the low-energy electronic excitations. A marked change in the binding energy and temperature dependence of the near-nodal scattering rates is observed near the superconducting transition temperature, $T_C$. The temperature slope of the scattering rate measured at low energy shows a discontinuity at ~$T_C$. In the superconducting state, coherent excitations are found with the scattering rates showing a cubic dependence on frequency and temperature. The superconducting gap has a d-wave magnitude with negligible contribution from higher harmonics. Further, the bi-layer splitting has been found to be finite at the nodal point.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0512685
dc.identifierhttp://arxiv.org/abs/cond-mat/0512685
dc.identifierPhys. Rev. B 73, 184518 (2006)
dc.identifierdoi:10.1103/PhysRevB.73.184518
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/105690
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleFine Details of the Nodal Electronic Excitations in Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$
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