Pressure-induced monotonic enhancement of T_c to over 30 K in superconducting Pr_0.82Sr_0.18NiO₂ thin films.

ABSTRACT: The successful synthesis of superconducting infinite-layer nickelate thin films with the highest T_c ≈ 15 K has ignited great enthusiasm for this material class as potential analogs of the high-T_c cuprates. Pursuing a higher T_c is always an imperative task in studying a new superconducting material system. Here we report high-quality Pr_0.82Sr_0.18NiO₂ thin films with T_c^onset ≈ 17 K synthesized by carefully tuning the amount of CaH₂ in the topotactic chemical reduction and the effect of pressure on its superconducting properties by measuring electrical resistivity under various pressures in a cubic anvil cell apparatus. We find that the onset temperature of the superconductivity, T_c

SUBMITTER: Wang NN 

PROVIDER: S-EPMC9334608 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature