1. High-quality epitaxial thin films of topological kagome metal CoSn by magnetron sputtering.
- Author
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Thapaliya, T. R., Yoo, Timothy, Hurtado Parra, Sebastian, Arndt, Nathan D., Need, R. F., Kikkawa, James M., Kim, Honggyu, and Huang, S. X.
- Subjects
THIN films ,FERMI energy ,QUANTUM states ,SEMIMETALS ,METALS ,MAGNETIC properties ,MAGNETRON sputtering - Abstract
The topological kagome metal CoSn hosts orbital-selective Dirac bands and very flat bands near the Fermi energy that lead to a range of exotic phenomena, such as fractional quantum Hall states. In this work, we report the synthesis of high-quality epitaxial (0001) CoSn films by magnetron sputtering. Comprehensive structural characterizations demonstrate high crystalline quality with low disorder, sharp interfaces, and a smooth surface. Complementary magnetic and transport properties show a paramagnetic, metallic ground state as seen in bulk. Our work creates a synthetic foundation to investigate and utilize rich topological physics in CoSn thin films and heterostructures. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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