The transport properties of a twisted bilayer graphene barrier are investigated for various twist angles. Remarkably, for small twist angles around the magic angle θm∼1.05∘, the local currents around the AA-stacked regions are strongly enhanced compared to the injected electron rate. Furthermore, the total and counterflow (magnetic) current patterns show high correlations in these regions, given rise to well-defined magnetic moments that form a magnetic Moir\'e superlattice. The orientation and magnitude of these magnetic moments changes as function of the gate voltage and possible implications for emergent spin-liquid behaviour are discussed.
@article{arxiv.1909.09341,
title = {Emergent magnetic texture in driven twisted bilayer graphene},
author = {D. A. Bahamon and G. Gómez-Santos and T. Stauber},
journal= {arXiv preprint arXiv:1909.09341},
year = {2020}
}