Compressive Strain Turns $s^{\pm }$ into $d$-Wave Pairing in One-unit-cell La${}_3$Ni${}_2$O${}_7$ Thin Film Via Substrate-Induced Hole Doping

Yang Zhang, Ling-Fang Lin, Adriana Moreo +3

Motivated by recent reports of ambient-pressure superconductivity in La${}_3$Ni${}_2$O${}_7$ films grown on LaSrAlO${}_4$, we investigate the superconducting instability in a one-unit cell…