Large intrinsic anomalous Hall effect in half-metallic ferromagnet Co₃Sn₂S₂ with magnetic Weyl fermions.

ABSTRACT: The origin of anomalous Hall effect (AHE) in magnetic materials is one of the most intriguing aspects in condensed matter physics and has been a controversial topic for a long time. Recent studies indicate that the intrinsic AHE is closely related to the Berry curvature of occupied electronic states. In a magnetic Weyl semimetal with broken time-reversal symmetry, there are significant contributions to Berry curvature around Weyl nodes, possibly leading to a large intrinsic AHE. Here, we report the quite large AHE in the half-metallic ferromagnet Co₃Sn₂S₂ single crystal. By systematically mapping out the electronic structure of Co₃Sn₂S₂ both theoretically and experimentally, we demonstrate that the intrinsic AHE from the Wey

SUBMITTER: Wang Q 

PROVIDER: S-EPMC6134149 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature