Absence of Superconductivity in Nd${}_{0.8}$Sr${}_{0.2}$NiO${}_x$ Thin Films without Chemical Reduction

Xiao-Rong Zhou, Ze-Xin Feng, Pei-Xin Qin +9

The recently reported superconductivity 9-15 K in Nd0.8Sr0.2NiO2/SrTiO3 heterostructures that were fabricated by a soft-chemical topotactic reduction approach based on precursor Nd…