Evolution of the Chern Gap in Chern Magnet HoMn${}_6$Sn${}_{6-x}$Ge${}_x$

Abstract

The Chern gap is a unique topological feature that can host non-abelian particles. The Kagome lattice forms a chern insulator with no gap. Upon the inclusion of magnetism the Kagome system hosts a Chern gap at the K points in the lattice. In this work, the effect of Ge doping on HoMn${}_6$Sn${}_6$ is investigated. It is seen that with increased doping, a multi-stack Chern gap in formed in HoMn${}_6$Sn${}_{6-x}$Ge${}_x$. In addition, the Chern gaps are much more pronounced and larger in energy in HoMn${}_6$Ge${}_6$ then HoMn${}_6$Sn${}_6$.

9 pages, 4 figures

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Cited by in corpus (2)

• Highly anisotropic magnetism in the vanadium-based kagome metal TbV6Sn6
• The role of electron correlations in the electronic structure of putative Chern magnet TbMn${}_6$Sn${}_6$