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Exchange biased anomalous Hall effect driven by frustration in a magnetic kagome lattice.

Ella LachmanRyan A MurphyNikola MaksimovicRobert KealhoferShannon HaleyRoss D McDonaldJeffrey R LongJames G Analytis
Published in: Nature communications (2020)
Co[Formula: see text]Sn[Formula: see text]S[Formula: see text] 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 geometric frustration intrinsic to the kagome network of magnetic ions, giving rise to spin-glass behavior and an exchange bias.
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