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Symmetry-based indicators of band topology in the 230 space groups

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Po, Hoi Chun, Vishwanath, Ashvin, Watanabe, Haruki·2017·Nature Communications

Abstract

The interplay between symmetry and topology leads to a rich variety of electronic topological phases, protecting states such as the topological insulators and Dirac semimetals. Previous results, like the Fu-Kane parity criterion for inversion-symmetric topological insulators, demonstrate that symmetry labels can sometimes unambiguously indicate underlying band topology. Here we develop a systematic approach to expose all such symmetry-based indicators of band topology in all the 230 space groups. This is achieved by first developing an efficient way to represent band structures in terms of elementary basis states, and then isolating the topological ones by removing the subset of atomic insulators, defined by the existence of localized symmetric Wannier functions. Aside from encompassing all earlier results on such indicators, including in particular the notion of filling-enforced quantum band insulators, our theory identifies symmetry settings with previously hidden forms of band topology, and can be applied to the search for topological materials.

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Metadata

Authors
Po, H. C., Vishwanath, A., & Watanabe, H.
Venue
Nature Communications
Published
2017-06-30
Volume
8
Issue
1
Pages
50-50
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2594211876
Cited by
791
References
12
FWCI
31.56
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Symmetry-based indicators of band topology in the 230 space groups. https://app.cochat.ai/papers/10.1038/s41467-017-00133-2
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Po, H. C., Vishwanath, A., & Watanabe, H. (2017). Symmetry-based indicators of band topology in the 230 space groups. Nature Communications. https://doi.org/10.1038/s41467-017-00133-2

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