$d$-wave and $s^{\pm }$ Pairing Strengths in Ba${}_2$CuO${}_{3+\delta }$

Abstract

Using a first principles derived two-orbital model ($d_{x^2-y^2}$, $d_{3z^2-r^2}$) and a random phase approximation treatment of the spin-fluctuation pairing vertex, we calculate the $d$-wave and $s^{\pm }$-wave pairing strengths for a model of the recently discovered Ba${}_2$CuO${}_{3+\delta }$ superconductor. We find that there is significant pairing strength in both of these channels. These results provide an interesting perspective on the relationship between the cuprates and Fe-based superconductors and the high-$T_c$ pairing mechanism.

Main text and supplemental material

References in corpus (7)

• Superconductivity in a unique type of copper oxide
• Pairing symmetry in a two-orbital Hubbard model on a square lattice
• Nodeless pairing in superconducting copper-oxide monolayer films on Bi2Sr2CaCu2O8+δ
• Finite energy spin fluctuation as a pairing glue in systems with coexisting electron and hole bands
• Enhancement of the superconducting critical temperature of Sr2CuO3+d up to 95K by ordering dopant atoms
• Nodeless high-T${}_c$ superconductivity in highly-overdoped monolayer CuO${}_2$
• Bulk superconductivity at 84 K in the strongly overdoped regime of cuprates

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