Ontology highlight
ABSTRACT:
SUBMITTER: Morimoto T
PROVIDER: S-EPMC4731769 | biostudies-other | 2016
REPOSITORIES: biostudies-other
Scientific reports 20160129
Relativistic Weyl fermion (WF) often appears in the band structure of three dimensional magnetic materials and acts as a source or sink of the Berry curvature, i.e., the (anti-)monopole. It has been believed that the WFs are stable due to their topological indices except when two Weyl fermions of opposite chiralities annihilate pairwise. Here, we theoretically show for a model including the electron-electron interaction that the Mott gap opens for each WF without violating the topological stabil ...[more]