Vacancies, disorder-induced smearing of the electronic structure, and its implications for the superconductivity of anti-perovskite MgC${}_{0.93}$Ni${}_{2.85}$

David Ernsting, David Billington, Thomas E. Millichamp +7

The anti-perovskite superconductor MgC${}_{0.93}$Ni${}_{2.85}$ was studied using high-resolution x-ray Compton scattering combined with electronic structure calculations. Compton scatt…