<i>RE</i> BCO mixtures with large difference in rare-earth ion size: superconducting properties of chemical solution deposition-grown Yb <sub> 1− <i>x</i> </sub> Sm <i> <sub>x</sub> </i> Ba <sub>2</sub> Cu <sub>3</sub> O <sub>7−</sub> <i> <sub>δ</sub> </i> films
Royal Society open science