Dirac surface states, multiorbital dimerization and superconductivity in Nb- and Ta-based A15 compounds

Raghottam M. Sattigeri, Giuseppe Cuono, Ghulam Hussain +5

Using first-principle calculations, we investigate the electronic, topological and superconducting properties of Nb${}_3$X (X = Ge, Sn, Sb) and Ta${}_3$Y (Y = As, Sb, Bi) A15 compounds…