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arXiv · 2307.14293

Non-chiral one-dimensional states propagating inside AB/BA domain walls in bilayer graphene

V. V. Enaldiev·C. Moulsdale·A. K. Geim·V. I. Fal'ko
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Abstract

Boundaries between structural twins of bilayer graphene (so-called AB/BA domain walls) are often discussed in terms of the formation of topologically protected valley-polarised chiral states. Here, we show that, depending on the width of the AB/BA boundary, the latter can also support non-chiral one-dimensional (1D) states that are confined to the domain wall at low energies and take the form of quasi-bound states at higher energies, where the 1D bands cross into the two-dimensional spectral continuum. We present the results of modeling of electronic properties of AB/BA domain walls with and without magnetic field as a function of their width and interlayer bias.

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V. V. Enaldiev, C. Moulsdale, A. K. Geim, V. I. Fal'ko. 2023-07-26. Non-chiral one-dimensional states propagating inside AB/BA domain walls in bilayer graphene. https://doi.org/10.20935/acadnano7267

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