Graphene bilayers with a twist

EY Andrei, AH MacDonald - Nature materials, 2020 - nature.com
Near a magic twist angle, bilayer graphene transforms from a weakly correlated Fermi liquid
to a strongly correlated two-dimensional electron system with properties that are …

Carbon-based nanostructures as a versatile platform for tunable π-magnetism

DG de Oteyza, T Frederiksen - Journal of Physics: Condensed …, 2022 - iopscience.iop.org
Emergence of π-magnetism in open-shell nanographenes has been theoretically predicted
decades ago but their experimental characterization was elusive due to the strong chemical …

Probing the magnetism of topological end states in 5-armchair graphene nanoribbons

J Lawrence, P Brandimarte, A Berdonces-Layunta… - ACS …, 2020 - ACS Publications
We extensively characterize the electronic structure of ultranarrow graphene nanoribbons
(GNRs) with armchair edges and zigzag termini that have five carbon atoms across their …

Scrolling reduced graphene oxides to induce room temperature magnetism via spatial coupling of defects

T Shi, Y Yao, Y Hong, Y Li, S Lu, W Qin, X Wu - Materials Horizons, 2023 - pubs.rsc.org
Due to its intriguing features and numerous applications, graphene has garnered a lot of
interest in recent years. However, it is still very difficult to create graphene-based room …

Local Berry phase signatures of bilayer graphene in intervalley quantum interference

Y Zhang, Y Su, L He - Physical Review Letters, 2020 - APS
Chiral quasiparticles in Bernal-stacked bilayer graphene have valley-contrasting Berry
phases of±2 π. This nontrivial topological structure, associated with the pseudospin winding …

Doping graphene with substitutional mn

PC Lin, R Villarreal, S Achilli, H Bana, MN Nair… - ACS …, 2021 - ACS Publications
We report the incorporation of substitutional Mn atoms in high-quality, epitaxial graphene on
Cu (111), using ultralow-energy ion implantation. We characterize in detail the atomic …

Characterization and manipulation of intervalley scattering induced by an individual monovacancy in graphene

Y Zhang, F Gao, S Gao, M Brandbyge, L He - Physical Review Letters, 2022 - APS
Intervalley scattering involves microscopic processes that electrons are scattered by atomic-
scale defects on the nanoscale. Although central to our understanding of electronic …

Large enhancement of thermoelectric performance in MoS2/h-BN heterostructure due to vacancy-induced band hybridization

J Wu, Y Liu, Y Liu, Y Cai, Y Zhao… - Proceedings of the …, 2020 - National Acad Sciences
Local impurity states arising from atomic vacancies in two-dimensional (2D) nanosheets are
predicted to have a profound effect on charge transport due to resonant scattering and can …

Observation of critical magnetic behavior in 2D carbon based composites

V Shukla - Nanoscale Advances, 2020 - pubs.rsc.org
Two dimensional (2D) carbonaceous materials such as graphene and its derivatives, eg,
graphdiyne, have enormous potential possibilities in major fields of scientific research …

Tunable magnetism of a single-carbon vacancy in graphene

Y Zhang, F Gao, S Gao, L He - Science Bulletin, 2020 - Elsevier
Creating a single-carbon vacancy introduces (quasi-) localized states for both σ and π
electrons in graphene. Theoretically, interactions between the localized σ electrons and …