Nodal and nodeless gap in proximity induced superconductivity: application to monolayer CuO${}_2$ on BSCCO substrate

Abstract

We present a detailed analysis on the hopping between monolayer CuO${}_2$ and bulk CuO${}_2$ plane in the Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ substrate. With a two-band model, we demonstrate that the nodeless gap can only exist when the hole concentration in monolayer CuO${}_2$ plane is very large or very small. We argued that the possible phase separation may play important role in the recent experimental observation of nodeless gap.

5 pages, 5 figures

References in corpus (3)

• Nodeless pairing in superconducting copper-oxide monolayer films on Bi2Sr2CaCu2O8+δ
• Proximity induced superconductivity in monolayer CuO${}_2$ on the cuprate substrates
• Rotational Symmetry Breaking in Sodium Doped Cuprates

Cited by in corpus (2)

• Nodeless high-T${}_c$ superconductivity in highly-overdoped monolayer CuO${}_2$
• Superconducting dome with $extended$ $s$-$wave$ pairing symmetry in the heavily hole-overdoped copper-oxide planes