Fig. 5: Theoretical calculations of band structure and anomalous Hall conductivity.

DFT calculated band struture for (a) in-plane triangular AFM structure of Mn3Sn and b canted non-coplanar structure for Mn2.5Fe0.5Sn systems. The color shows the Berry curvature. The anomalous Hall conductivity as a function of energy for (c) in-plane triangular AFM structure of Mn3Sn and d canted non-coplanar structure for Mn2.5Fe0.5Sn systems. Fermi level is taken as E = 0.