First-principles prediction of phonon-mediated superconductivity in XBC (X= Mg, Ca, Sr, Ba)

Enamul Haque, M. Anwar Hossain, Catherine Stampfl

From first-principles calculations, we predict four new intercalated hexagonal $X$BC ($X$=Mg, Ca, Sr, Ba) compounds to be dynamically stable and phonon-mediated superconductors. Th…