High temperature transitions in Ruddlesden-Popper nickelates La${}_{n+1}$Ni${}_n$O${}_{3n+1}$

P. Reiss, A. Shevchenko, P. S. Lizama +9

The discovery of superconductivity at $15\mathrm{K}$ in the infinite-layer nickelate $(\mathrm{Nd},\mathrm{Sr}){\mathrm{NiO}}_2$, followed by superconductivity at $80\mathrm{K}$…