Disordered two-dimensional ferromagnetism at the surface of FeSi
Disordered two-dimensional ferromagnetism at the surface of FeSi
FeSi is a curious example of a $d$-electron system that manifests many of the same phenomena associated with $f$-electron Kondo insulators, including conducting surface states with potentially nontrivial topology. Here we investigate the magnetization and magnetotransport of these surface states and how a 2D ferromagnetic state at the surface of …