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

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.

SUBMITTER: Lachman E

PROVIDER: S-EPMC6987238 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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

Lachman Ella E Murphy Ryan A RA Maksimovic Nikola N Kealhofer Robert R Haley Shannon S McDonald Ross D RD Long Jeffrey R JR Analytis James G JG

Nature communications 20200128 1

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 ...[more]

PMID: 31992704

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