Epitaxial growth and superconductivity of optimally doped Sr1−xEuxCuO2 cuprate filmsRemoveHang Yan, Ze-Xian Deng, Jia-Qi Fan, Xue-Qing Yu, Xiao-Peng Hu, Can-Li Song, Xu-Cun Ma, and Qi-Kun XuePhys. Rev. Materials 7, 074802 (2023)