Anisotropic phase stiffness in infinite-layer nickelates superconductors

Film growth and structure characterization

Perovskite Nd_0.8Sr_0.2NiO₃ films with a thickness of 15 nm were grown on single-crystal SrTiO₃ (001) substrates using pulsed laser deposition (PLD, Demcon TSST) with a KrF excimer laser (