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Hofstadter subband ferromagnetism and symmetry broken Chern insulators in twisted bilayer graphene

Published on June 11, 2021

Transport measurements of twisted bilayer graphene reveal a sequence of spin and valley polarized states with Chern numbers 1, 2, 3. We can understand these states using a Hartree theory on top of a Hofstadter butterfly.

Cited 94 times.


Y. Saito, J. Ge, L. Rademaker, K. Watanabe, T. Taniguchi, D. A. Abanin, A. F. Young

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