Optical anisotropy of the kagome magnet FeSn: Dominant role of excitations between kagome and Sn layers

J. Ebad-Allah, M. -C. Jiang, R. Borkenhagen +8

Antiferromagnetic FeSn is considered to be a close realization of the ideal two-dimensional (2D) kagome lattice, hosting Dirac cones, van Hove singularities, and flat bands, as it…