Enhancement of superconductivity in electron-hole coexisting Sr${}_{1-x}$Eu${}_x$CuO${}_{2+y}$ films

Hang Yan, Ze-Xian Deng, Xue-Qing Yu +6

We report transport measurements of infinite-layer cuprate Sr${}_{1-x}$Eu${}_x$CuO${}_{2+y}$ films with controlled electron (by trivalent europium) and hole (by interstitial apical oxy…