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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Emergent magnetic texture in driven twisted bilayer graphene

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Author(s):
Bahamon, Dario A. [1] ; Gomez-Santos, G. [2, 3] ; Stauber, T. [4]
Total Authors: 3
Affiliation:
[1] Univ Prebiteriana Mackenzie, MackGraphe Gmphene & Nanomat Res Ctr, Rua Consolacao 896, BR-01302907 Sao Paulo, SP - Brazil
[2] Univ Autonoma Madrid, Inst Nicolas Cabrera, Dept Fis Mat Condensada, E-28049 Madrid - Spain
[3] Univ Autonoma Madrid, Condensed Matter Phys Ctr IFIMAC, E-28049 Madrid - Spain
[4] CSIC, Inst Ciencias Mat Madrid, Dept Teoria & Simulac Mat, E-28049 Madrid - Spain
Total Affiliations: 4
Document type: Journal article
Source: NANOSCALE; v. 12, n. 28, p. 15383-15392, JUL 28 2020.
Web of Science Citations: 6
Abstract

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)

FAPESP's process: 15/11779-4 - Plasmonic and nonlinear effects in graphene coupled to optical waveguides
Grantee:Christiano José Santiago de Matos
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 18/07276-5 - Mid- and far-infrared plasmonic biosensing with graphene
Grantee:Christiano José Santiago de Matos
Support Opportunities: Regular Research Grants