https://doi.org/10.1140/epjb/s10051-022-00393-y
Regular Article - Solid State and Materials
Electronic properties of normal and extended Hubbard model for bilayer cuprates
Institute of Physics, Federal University of Mato Grosso, 78060-900, Cuiabá, MT, Brazil
Received:
1
June
2022
Accepted:
1
August
2022
Published online:
10
August
2022
Using dynamical mean-field theory we explore the electronic properties of the bilayer Hubbard model. For realistic model parameters we find a large reduction of the bonding-antibonding splitting of pure and hole doped Bi
SrCaCuO
bilayer superconductor due to sizable dynamical correlations. Our results reveal a remarkable layer-selective renormalization of the Cu-3d bands caused by the interplay of intralayer Coulomb interaction and layer polarization with emergent Landau–Fermi liquid electronic excitations. At finite repulsive interlayer Coulomb interaction we predict a continuous layer decoupling phenomenon with coexisting Landau–Fermi liquid and Mott localized electrons. The emergence of layer-selectivity is important for the ongoing debate of correlated two-fluid superconductivity.
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