Details

Autor(en) / Beteiligte

• Liu, D F
• Liang, A J
• Liu, E K
• Xu, Q N
• Li, Y W
• Chen, C
• Pei, D
• Shi, W J
• Mo, S K
• Dudin, P
• Kim, T
• Cacho, C
• Li, G
• Sun, Y
• Yang, L X
• Liu, Z K
• Parkin, S S P
• Felser, C
• Chen, Y L

Titel

Magnetic Weyl semimetal phase in a Kagomé crystal

Ist Teil von

• Science (American Association for the Advancement of Science), 2019-09, Vol.365 (6459), p.1282-1285

Ort / Verlag

United States: The American Association for the Advancement of Science

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Science Online_科学在线

Beschreibungen/Notizen

• 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 Co Sn S and discovered its characteristic surface Fermi-arcs and linear bulk band dispersions across the Weyl points. These results establish Co Sn S 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.