  Co3Sn2S2 is a ferromagnetic Weyl semimetal that has been the subject of
intense scientific interest due to its large anomalous Hall effect. We show
that the coupling of this material's topological properties to its magnetic
texture leads to a strongly exchange biased anomalous Hall effect. We argue
that this is likely caused by the coexistence of ferromagnetism and spin glass
phases, the latter being driven by the geometric frustration intrinsic to the
Kagome network of magnetic ions.
