Optimal T${}_c$ of cuprates: role of screening and reservoir layers

Abstract

We explore the role of charge reservoir layers (CRLs) on the superconducting transition temperature of cuprate superconductors. Specifically, we study the effect of CRLs with efficient short distance dielectric screening coupled capacitively to copper oxide metallic layers. We argue that dielectric screening at short distances and at frequencies of the order of the superconducting gap, but small compared to the Fermi energy can significantly enhance T${}_c$, the transition temperature of an unconventional superconductor. We discuss the relevance of our qualitative arguments to a broader class of unconventional superconductors.

8 Pages, 4 figures

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Cited by in corpus (6)

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• On the theory of superconductivity in the extended Hubbard model: Spin-fluctuation pairing
• Antagonistic effects of nearest-neighbor repulsion on the superconducting pairing dynamics in the doped Mott insulator regime
• Spin fluctuations and high-temperature superconductivity in cuprates
• Fidelity Study of Superconductivity in Extended Hubbard Models
• Interlayer Coupling Induced Quasiparticles