Schematic of synthesizing (La,Pr)3Ni2O7 on SrLaAlO4 with gigantic-oxidative atomically layer-by-layer epitaxy (GOALL-Epitaxy). Credit: Guangdi Zhou et al A team of engineers and physicists at Southern University of Science and Technology, in China, has created a nickel-based material that behaves as a superconductor above the -233°C (40 K) threshold under ambient pressure. In their study published in Nature, the researchers synthesized thin films of bilayer nickelate (La₂.₈₅Pr₀.₁₅Ni₂O₇) and foun...