Bahamon, Dario A.
Total Authors: 3
 Univ Prebiteriana Mackenzie, MackGraphe Gmphene & Nanomat Res Ctr, Rua Consolacao 896, BR-01302907 Sao Paulo, SP - Brazil
 Univ Autonoma Madrid, Inst Nicolas Cabrera, Dept Fis Mat Condensada, E-28049 Madrid - Spain
 Univ Autonoma Madrid, Condensed Matter Phys Ctr IFIMAC, E-28049 Madrid - Spain
 CSIC, Inst Ciencias Mat Madrid, Dept Teoria & Simulac Mat, E-28049 Madrid - Spain
Total Affiliations: 4
JUL 28 2020.
Web of Science Citations:
The transport properties of a twisted bilayer graphene barrier are investigated for various twist angles. Remarkably, for small twist angles around the magic angle theta(m)similar to 1.05 degrees, 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, giving rise to well-defined magnetic moments that form a magnetic Moire superlattice. The orientation and magnitude of these magnetic moments change as a function of the gate voltage and possible implications for emergent spin-liquid behaviour are discussed. (AU)