Collective spin excitations in trilayer nickelate La${}_4$Ni${}_3$O${}_{10}$

Ying Chan, Yuehong Li, Yujie Yan +14

Ruddlesden-Popper (RP) nickelates have recently emerged as a new family of high-temperature superconductors. In bilayer RP nickelates, magnetic excitations with large exchange coup…