  Magnetic materials with kagome crystal structure exhibit rich physics such as
frustrated magnetism, skyrmion formation, topological flat bands, and
Dirac/Weyl points. Until recently, most studies on kagome magnets have been
performed on bulk crystals or polycrystalline films. Here we report the
synthesis of high-quality epitaxial films of topological kagome magnet
Fe$_3$Sn$_2$ by atomic layer molecular beam epitaxy. Structural and magnetic
characterization of Fe$_3$Sn$_2$ on epitaxial Pt(111) identifies highly ordered
films with c-plane orientation and an in-plane magnetic easy axis. Studies of
the local magnetic structure by anomalous Nernst effect imaging reveals
in-plane oriented micrometer size domains. The realization of high-quality
films by atomic layer molecular beam epitaxy opens the door to explore the rich
physics of this system and investigate novel spintronic phenomena by
interfacing Fe$_3$Sn$_2$ with other materials.
