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Magnetic Weyl semimetal phase in a Kagomé crystal.

08:00 EDT 20th September 2019 | BioPortfolio

Summary of "Magnetic Weyl semimetal phase in a Kagomé crystal."

Weyl semimetals are crystalline solids that host emergent relativistic Weyl fermions and have characteristic surface Fermi-arcs in their electronic structure. Weyl semimetals with broken time reversal symmetry are difficult to identify unambiguously. In this work, using angle-resolved photoemission spectroscopy, we visualized the electronic structure of the ferromagnetic crystal CoSnS and discovered its characteristic surface Fermi-arcs and linear bulk band dispersions across the Weyl points. These results establish CoSnS as a magnetic Weyl semimetal that may serve as a platform for realizing phenomena such as chiral magnetic effects, unusually large anomalous Hall effect and quantum anomalous Hall effect.

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This article was published in the following journal.

Name: Science (New York, N.Y.)
ISSN: 1095-9203
Pages: 1282-1285

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