Colossal anomalous Hall effect in the layered antiferromagnetic EuAl 2 Si 2 compound

The anomalous AHE induced by the skew scattering mechanism can obtain a large AHC but a small AHA in the clean regime. Here, we observed a colossal AHC (≥ 10 4 Ω −1 cm −1 ) and large AHA (> 10%) at the same time in EuAl 2 Si 2 .