Theoretical study on ambient pressure superconductivity in La${}_3$Ni${}_2$O${}_7$ thin films : structural analysis, model construction, and robustness of $s\pm$-wave pairing

Kensei Ushio, Shu Kamiyama, Yuto Hoshi +4

We theoretically study ambient pressure superconductivity in thin films of La${}_3$Ni${}_2$O${}_7$. We construct model Hamiltonians adopting the crystal structure theoretically determine…