First principles study on the structural, electronic, magnetic and thermoelectric properties of CoX′NbGa (X′ = Cr, Mn, Fe) quaternary Heusler alloysNamitha Anna Koshi and Rita JohnEur. Phys. J. B, 92 4 (2019) 86DOI: https://doi.org/10.1140/epjb/e2019-90663-3