Article Topological valley transport at the curved boundary of a folded bilayer graphene

E. Mania ; A. R. Cadore ; T. Taniguchi SAMURAI ORCID (National Institute for Materials Science) ; K. Watanabe SAMURAI ORCID (National Institute for Materials Science) ; L. C. Campos

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E. Mania, A. R. Cadore, T. Taniguchi, K. Watanabe, L. C. Campos. Topological valley transport at the curved boundary of a folded bilayer graphene. Communications Physics. 2019, 2 (1), . https://doi.org/10.1038/s42005-018-0106-4
SAMURAI

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(abstract)

We report on a high-quality domain wall formed at the curved boundary of folded bilayer graphene (folded-BLG). At such 1D conducting channel, we measured a two-terminal resistance close to the quantum resistance R = e2/4h at zero magnetic field, a signature of kink states. Our experiments reveal a long-range ballistic transport regime that occurs only at the DW of the folded-BLG, while the other regions behave likely semiconductors with tunable band gap.

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Keyword: Valleytronics, bilayer graphene, domain wall

Date published: 2019-01-11

Publisher: Springer Science and Business Media LLC

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  • Communications Physics (ISSN: 23993650) vol. 2 issue. 1

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Manuscript type: Publisher's version (Version of record)

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First published URL: https://doi.org/10.1038/s42005-018-0106-4

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Updated at: 2025-02-23 22:49:17 +0900

Published on MDR: 2025-02-23 22:49:17 +0900

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