Exchange biased anomalous Hall effect driven by frustration in a magnetic kagome lattice.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 31992704.
- Also identified by DOI 10.1038/s41467-020-14326-9 and PMC identifier 6987238.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
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.