Nodal‐Surface and Flat‐Band Driven Large Room‐Temperature Anomalous Nernst Effect in Epitaxial Ferromagnetic Weyl Metal Fe5Si3
Magnetic topological materials exhibit unconventional transport arising from the interplay between exchange‐driven symmetry breaking and band topology. Beyond the point‐like singularities of Weyl and Dirac fermions, extended degeneracies such as nodal surfaces and flat bands constitute an emerging frontier whose impact...