Superconductivity proximate to antiferromagnetism in a copper-oxide monolayer grown on Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$

Shuai Wang, Long Zhang, Fa Wang

A nodeless superconducting (SC) gap was reported in a recent scanning tunneling spectroscopy experiment of a copper-oxide monolayer grown on the Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ (Bi22…