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. 2021 Mar 25;12:1855. doi: 10.1038/s41467-021-22136-w

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — a-b Crystal structure of triclinic RhBi₂ with different orientations (Bi:blue spheres, Rh: yellow spheres). c Bulk band structure of RhBi₂ in the triclinic crystal structure (space group 2) calculated in DFT-PBE with SOC. The top valence band according to electron filling is in blue. d Density of states (DOS) projected on Rh and Bi. e 3D Fermi surface at the (E_F) with eight time-reversal invariant momentum (TRIM) points and reciprocal lattice vectors labeled. Electron and hole pockets are in cyan (red inside) and purple (green inside) respectively. f 3D FS viewed along b₁ axis with projection of TRIM points and 2D reciprocal lattice vectors labeled. g and h Wannier charge center (WCC) evolution on the k₃=0.0 and 0.5 planes, respectively, showing the non-trivial topology.