Enhanced superconductivity at ultrathin oxide interface furthers energy-efficiency and high-temperature superconductivity

https://www.eurekalert.org/news-releases/1144678

"electron pairing alone insufficient to achieve superconductivity; they must also maintain collective phase coherence across localized superconducting islands... overcome using lanthanum aluminate/ potassium tantalate interface, tuned applying electric field strengthening weak Josephson coupling between these granular islands... interface superconductivity shifts from phase coordination (Bose–Einstein condensate-like behavior) to forming electron pairs themselves (Bardeen–Cooper–Schrieffer-like behavior)"