Jian-Xiang Sun

Electronic structure and two-orbital model of the quadlayer La$_5$Ni$_4$O$_{13}$

The discovery of pressure-induced superconductivity in Ruddlesden--Popper (RP) nickelates has stimulated extensive interest in high-T$_c$ superconductors. Here, we systematically study the electronic properties of the quadlayer RP nickelate La$_5$Ni$_4$O$_{13}$ under ambient pressure, 5% isotropic compressive strain, a...