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arXiv · 1101.2606

Moire Butterflies

R. Bistritzer·A. H. MacDonald
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Abstract

The Hofstadter butterfly spectral patterns of lattice electrons in an external magnetic field yield some of the most beguiling images in physics. Here we explore the magneto-electronic spectra of systems with moire spatial patterns, concentrating on the case of twisted bilayer graphene. Because long-period spatial patterns are accurately formed at small twist angles, fractal butterfly spectra and associated magneto-transport and magneto-mechanical anomalies emerge at accessible magnetic field strengths.

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R. Bistritzer, A. H. MacDonald. 2011-01-13. Moire Butterflies. https://doi.org/10.1103/physrevb.84.035440

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