Absence of superconductivity in bulk Nd${}_{1-x}$Sr${}_x$NiO${}_2$

Qing Li, Chengping He, Jin Si +3

Recently superconductivity at 9 - 15 K was discovered in an infinite-layer nickelate (Nd${}_{0.8}$Sr${}_{0.2}$NiO${}_2$ films), which has received enormous attention. Since the $N{i}^{1+}$…