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

Ella Lachman (), Ryan A. Murphy, Nikola Maksimovic, Robert Kealhofer, Shannon Haley, Ross D. McDonald, Jeffrey R. Long and James G. Analytis
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Ella Lachman: University of California
Ryan A. Murphy: University of California
Nikola Maksimovic: University of California
Robert Kealhofer: University of California
Shannon Haley: University of California
Ross D. McDonald: Los Alamos National Laboratory
Jeffrey R. Long: Lawrence Berkeley National Laboratory
James G. Analytis: University of California

Nature Communications, 2020, vol. 11, issue 1, 1-8

Abstract: Abstract Co$$_{3}$$3Sn$$_{2}$$2S$$_{2}$$2 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.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-14326-9

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DOI: 10.1038/s41467-020-14326-9

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