While there has been extensive theoretical analysis of the 3D nodal flat-band topological semimetals, experimental realization has proved challenging. Here, Wang, Li, Zhao, Wen, and coauthors find a robust flat magnetoresistance in D03-Fe3Ga, which, combined with DFT calculations and Hall measurements, provide strong evidence that D03-Fe3Ga is a 3D nodal flat-band ferromagnet.
- Ruoqi Wang
- Xinyang Li
- Jinlan Wang