# Weyl fermions and the anomalous Hall effect in metallic ferromagnets

@article{Chen2013WeylFA, title={Weyl fermions and the anomalous Hall effect in metallic ferromagnets}, author={Yu-Hsiang Chen and Doron L. Bergman and Anton A. Burkov}, journal={Physical Review B}, year={2013}, volume={88}, pages={125110} }

We reconsider the problem of the anomalous Hall effect in ferromagnetic SrRuO_3, incorporating insights from the recently developed theory of Weyl semimetals. We demonstrate that SrRuO_3 possesses a large number of Weyl nodes, separated in momentum space, in its band structure. While the nodes normally do not coincide with the Fermi energy, unless the material is doped, we show that even the nodes inside the Fermi sea have a significant effect on the physical properties of the material. In…

## 70 Citations

Weyl fermions and spin dynamics of metallic ferromagnet SrRuO3

- Physics, MedicineNature communications
- 2016

Evidence is provided by neutron Brillouin scattering that the spin dynamics of the metallic ferromagnet SrRuO3 in the very low energy range of milli-electron volts is closely relevant to Weyl fermions near Fermi energy.

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We present a theory of the anomalous Hall effect in a topological Weyl superconductor with broken time reversal symmetry. Specifically, we consider a ferromagnetic Weyl metal with two Weyl nodes of…

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Weyl semimetals are three-dimensional crystalline systems where pairs of bands touch at points in momentum space, termed Weyl nodes, that are characterized by a definite topological charge: the…