Figure 2: (a) A plot of transverse resistivity, , against for SrRuO3. The strong temperature-dependence cannot be explained by impurity-based extrinsic AHE mechanisms. (b) A comparison with experimental results of first-principle calculations of the Berry curvature and as a function of the magnetization, . The calculations for the orthorhombic phase closely match those of experiment by accounting for the exchange splitting of the bands. All figures are taken from .