Evidence for CuO conducting band splitting in the nodal direction of Bi-2212

Abstract

Using angle-resolved photoemission spectroscopy with ultimate momentum resolution we have explicitly resolved the bilayer splitting in the nodal direction of Bi-2212. The splitting is observed in a wide doping range and, within the experimental uncertainty, its size does not depend on doping. The value of splitting derived from the experiment is in good agreement with that from band structure calculations which implies the absence of any electronic confinement to single planes within bilayers of Bi-2212. Other consequences of this finding are also discussed.

arXiv commentFermi surface map with well resolved nodal splitting is added

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• Experimental setup for low-energy laser-based angle resolved photoemission spectroscopy
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• Unmasking the nodal quasiparticle dynamics in cuprate superconductors using low-energy photoemission
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• Superconductivity in high-$T_c$ and related strongly correlated systems from variational perspective: Beyond mean field theory
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• Effect of Zn and Ni impurities on the quasiparticle renormalization in Bi-2212
• Fine Details of the Nodal Electronic Excitations in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again
• Quantum oscillation signatures of nodal spin-orbit coupling in underdoped bilayer high Tc cuprates
• Dual character of the electronic structure in YBa2Cu4O8: conduction bands of CuO2 planes and CuO chains
• Doping-dependence of nodal quasiparticle properties in high-$T_{\mathrm{c}}$ cuprates studied by laser-excited angle-resolved photoemission spectroscopy
• Unadulterated spectral function of low energy quasiparticles: Bi-2212, nodal direction
• Pseudogap behaviour in Bi2212: Results of Generalized DMFT Approach
• Selective Hybridization between Main Band and Superstructure Band in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ Superconductor
• Controlling the carrier concentration of the high temperature superconductor Bi2Sr2CaCu2O{8+x} in Angle Resolved Photoemission Spectroscopy (ARPES) experiments
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• Self-energy of a nodal fermion in a d-wave superconductor
• Renormalization of electrons in bilayer cuprate superconductors
• Comments on gap anisotropy and nodal constant Fermi velocity in a superconductor, BSCCO
• Multiband Quantum Materials
• High Temperature Superconductivity Dominated by Inner Underdoped CuO${}_2$ Planes in Quadruple-Layer Cuprate (Cu,C)Ba${}_2$Ca${}_3$Cu${}_4$O${}_{11+\delta }$
• Momentum space topology and quantum phase transitions