ArticleProceedings of the National Academy of Sciences of the United States of America2026
Extended fractional Hofstadter states at high field in twisted bilayer graphene above the magic angle.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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- Extended fractional Hofstadter states at high field in twisted bilayer graphene above the magic angle.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
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10 authors.
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Abstract
When a Chern band is partially filled, a fractional Chern insulator (FCI)-the lattice analog of a fractional quantum Hall state-can arise. Though the full range of possible scenarios for producing such a state is not established, the most tractable models combine strong electronic interactions with the quantum geometry of the parent Chern band meeting specific criteria. In twisted bilayer graphene, the importance of interactions can be tuned by varying the interlayer twist. Here, we study a sample with twist near 1.4
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