Evidence for a higher-order topological insulator in a three-dimensional material built from van der Waals stacking of bismuth-halide chains.
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Nat Mater. 2021 Apr;20(4):473-479. doi: 10.1038/s41563-020-00871-7. Epub 2021 Jan 4.
Nat Mater. 2021.
PMID: 33398124