首页|Electronic properties of normal and extended Hubbard model for bilayer cuprates
Electronic properties of normal and extended Hubbard model for bilayer cuprates
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NSTL
Springer Nature
Abstract 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 Bi2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_2$$\end{document}Sr2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_2$$\end{document}CaCu2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_2$$\end{document}O8+δ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{8 +\delta }$$\end{document} 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.Graphical abstract
NSTL
Springer Nature
