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Updated: Dec 29, 2025

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
Published on: January 21, 2016
Exchange biased anomalous Hall effect driven by frustration in a magnetic kagome lattice
Ella Lachman1,2, Ryan A Murphy3, Nikola Maksimovic4,5
1Department of Physics, University of California, Berkeley, CA, 94720, USA. ellal@berkeley.edu.
Abstract:
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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