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arXiv · 2105.12203

Epitaxial Growth and Domain Structure Imaging of Kagome Magnet Fe$_3$Sn$_2$

Shuyu Cheng·Igor Lyalin·Alexander J. Bishop·Roland K. Kawakami
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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 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.

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Shuyu Cheng, Igor Lyalin, Alexander J. Bishop, Roland K. Kawakami. 2021-05-25. Epitaxial Growth and Domain Structure Imaging of Kagome Magnet Fe$_3$Sn$_2$. https://arxiv.org/abs/2105.12203

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