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. 2019 Oct 18;10:4765. doi: 10.1038/s41467-019-12805-2

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© The Author(s) 2019

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 — The crystal structure and Fermi surface of PtBi₂. a, b Crystal structure of trigonal layered PtBi₂ with space group P31m. c Bulk Brillouin zone (blue) and surface Brillouin zone (orange). d Constant-energy contour at E_b = 440 meV and around k_z = 0 measured by angle-resolved photoemission spectroscopy (ARPES) (hν = 8.8 eV). The color scale is linear as in all other images. e Calculated constant energy contour at E_b = 420 meV and k_z = 0