Topological node-line semimetal in three-dimensional graphene networks
Open accessAbstract
Graphene, a two-dimensional (2D) carbon sheet, acquires many of its amazing properties from the Dirac point nature of its electronic structures with negligible spin-orbit coupling. Extending to 3D space, graphene networks with negative curvature, called Mackay-Terrones crystals (MTCs), have been proposed and experimentally explored, yet their topological properties have yet to be discovered. Based on the first-principle calculations, we report an all-carbon MTC with topologically nontrivial electronic states by exhibiting node lines in bulk. When the node lines are projected onto surfaces to form circles, ``drumhead''-like flat surface bands nestled inside of the circles are formed. The bulk node line can evolve into a 3D Dirac point in the absence of inversion symmetry, the existence of which has been shown to be plausible in recent experiments.
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ZrTe5 is believed to be close to a band touching transition and may be very sensitive to materials preparation.
“This system is believed to be close to a band touching transition (Weng et al. , 2014) and may be very sensitive to materials preparation.”
From Weyl and Dirac semimetals in three-dimensional solids (2018) · cites this paper as Weng et al. , 2014
The Results (p. 3) and Conclusion (p. 10) concern band crossings in all-carbon Mackay–Terrones crystals, not ZrTe5. Searches for ZrTe5, a band-touching transition, and sensitivity to materials preparation found no passage addressing the attributed claim. (LLM, conf=0.77)
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Cites
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BackgroundInfluential
- Authors
- Weng, H., Liang, Y., Xu, Q., Yu, R., Fang, Z., Dai, X., & Kawazoe, Y.
- Affiliations
- Chinese Academy of Sciences (CN)
- Tohoku University (JP)
- National Institute for Materials Science (JP)
- Russian Academy of Sciences (RU)
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2015-07-08
- Volume
- 92
- Issue
- 4
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W1800890817
- Cited by
- 756
- References
- 7
- Citations by year
- 2026: 29 · 2025: 43 · 2024: 47 · 2023: 57 · 2022: 64 · 2021: 78 · 2020: 88 · 2019: 84 · 2018: 105 · 2017: 89 · 2016: 58 · 2015: 14
- FWCI
- 45.07
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review B (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
- arXiv (Cornell University)
- Funders
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- Tohoku University
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
- Physical Sciences › Materials Science › Materials Chemistry › Graphene research and applications
- Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
- Keywords
- three-dimensional graphene network, drumhead surface states, negative curvature, topological electronic states, inversion symmetry breaking
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