Spin density wave and superconductivity in the bilayer $t$-$J$ model of ${\mathrm{La}}_3\mathrm{N}{\mathrm{i}}_2{\mathrm{O}}_7$ under renormalized mean-field theory

Yang Tian, Yan Chen

Motivated by the recently discovered bilayer nickelate superconductor, the pressurized ${\mathrm{La}}_3\mathrm{N}{\mathrm{i}}_2{\mathrm{O}}_7$, we present a renormalized mean-field theory of a bilayer single-ban…