Coexistence of superconductivity and complex 4$f$ magnetism in Eu${}_{0.5}$Ce${}_{0.5}$BiS${}_2$F

Hui-Fei Zhai, Pan Zhang, Zhang-Tu Tang +5

EuBiS${}_2$F is a self-doped superconductor due to the mixed valence of Eu. Here we report that, with the Ce substitution for Eu by 50 at.\%, the material exhibits ferromagnetic or…