Weyl metal prediction and anomalous Hall effect in hexagonal Fe 2 MnSn alloy

This is the authors' abstract. We don't add key points for this paper.

The topological band structure is fundamental to condensed matter physics. This study identifies hexagonal D0₁₉-II type Fe₂MnSn as a magnetic Weyl metal. First-principles calculations reveal symmetry-protected Weyl nodes near the Fermi level, yielding large intrinsic anomalous Hall conductivity (AHC). Experiments shows an AHC of 303 {Ω}⁻{} cm⁻{} at 10 K, with 92.7% attributed to Berry curvature, confirming dominant topological transport and establishing it as an ideal platform for exploring Berry curvature effects in topological magnetic materials with multiatomic configurations.