类型 材料 频次 3 别名 Bilayer two-orbital Hubbard model 相关论文 Emergence of Kugel-Khomskii physics in quarter-filled bilayer correlated systems The evolution of pairing correlation with 3d_z2 electron filling in a bilayer two-orbital model for La3Ni2O7 Interlayer pairing mechanism for bilayer nickelate superconductors