Extended fractional Hofstadter states at high field in twisted bilayer graphene above the magic angle

Proceedings of the National Academy of Sciences, Volume 123, Issue 41, October 2026. SignificanceElectrons in solids can collectively organize into topological states characterized by integer or fractionally quantized Hall conductance. Fractional states, which rely on strong electron–electron interactions, are typically more fragile than ...

pnas.org ·10d ago

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