Superconductivity in Multilayer Perovskite: Weak Coupling Analysis

Abstract

We investigate the superconductivity of a three-dimensional d-p model with a multilayer perovskite structure on the basis of the second-order perturabation theory within the weak coupling framework. Our model has been designed with multilayer high-$T_c$ superconducting cuprates in mind. In our model, multiple Fermi surfaces appear, and the component of a superconducting gap function develops on each band. We have found that the multilayer structure can stabilize the superconductivity in a wide doping range.

10 pages, 5 figures

References in corpus (5)

• LDA energy bands, low-energy Hamiltonians, t', t'', t_{perp}(k), and J_{perp}
• Bilayer Splitting in the Electronic Structure of Heavily Overdoped Bi2Sr2CaCu2O8+d
• Doubling of the bands in overdoped Bi2Sr2CaCu2O8-probable evidence for c-axis bilayer coupling
• Coexistence of Superconductivity and Antiferromagnetism in Multilayered High-$T_c$ Superconductor HgBa${}_2$Ca${}_4$Cu${}_5$O${}_y$: A Cu-NMR Study
• Electronic States and Superconductivity in Multi-layer High-Tc Cuprates

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• Disparity of superconducting and pseudogap scales in low-Tc Bi-2201 cuprates
• Antiferromagnetism, Superconductivity and Phase Diagram in the Two-Dimensional Hubbard Model -- Off-Diagonal Wave Function Monte Carlo Studies of Hubbard Model III --
• Coexistence of superconductivity and antiferromagnetism in self-doped bilayer t-t'-J model
• Three-Dimensional Multiband d-p Model of Superconductivity in Spin-Chain Ladder Cuprate
• Superconductivity and inhomogeneous charge-ordered state in the two-Dimensional Hubbard model -- Off-Diagonal Wave Function Monte Carlo Studies of Hubbard Model IV