Atomic Layer Epitaxy of Kagome Magnet FeSn and Sn-modulated Heterostructures
arXiv:2203.08092 · doi:10.1063/5.0094257
Abstract
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 atomic layer molecular beam epitaxy synthesis of high-quality thin films of topological kagome magnet FeSn. Structural and magnetic characterization of FeSn 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. Superlattice structures consisting of FeSn and FeSn are also synthesized by atomic layer molecular beam epitaxy, demonstrating the ability to modulate the sample structure at the atomic level. 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 FeSn with other materials.
8 pages, 5 figures. arXiv admin note: substantial text overlap with arXiv:2105.12203
References in corpus (2)
Cited by in corpus (7)
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