类型 方法 频次 3 别名 Density functional theory (DFT) calculations 相关论文 Contrasting Spin Excitations in Octahedral and Square-Planar n=8 Ruddlesden-Popper Nickelates Delafossites as an unexpected competing phase to infinite-layer oxides Structural symmetry effects on the competition of density waves and superconductivity in bilayer nickelates