Electronic-structure methods for twisted moiré layers

S Carr, S Fang, E Kaxiras - Nature Reviews Materials, 2020 - nature.com
When single layers of 2D materials are stacked on top of one another with a small twist in
orientation, the resulting structure often involves incommensurate moiré patterns. In these …

Straining techniques for strain engineering of 2D materials towards flexible straintronic applications

M Pandey, C Pandey, R Ahuja, R Kumar - Nano Energy, 2023 - Elsevier
Straintronics of two-dimensional (2D) materials offers enormous promise for both
fundamental research and smart technologies. Strain engineering of 2D materials has …

Promotion of superconductivity in magic-angle graphene multilayers

Y Zhang, R Polski, C Lewandowski, A Thomson… - Science, 2022 - science.org
Graphene moiré superlattices show an abundance of correlated insulating, topological, and
superconducting phases. Whereas the origins of strong correlations and nontrivial topology …

Cascade of phase transitions and Dirac revivals in magic-angle graphene

U Zondiner, A Rozen, D Rodan-Legrain, Y Cao… - Nature, 2020 - nature.com
Twisted bilayer graphene near the magic angle,,–exhibits rich electron-correlation physics,
displaying insulating,,–, magnetic, and superconducting phases,–. The electronic bands of …

Moiré quantum chemistry: charge transfer in transition metal dichalcogenide superlattices

Y Zhang, NFQ Yuan, L Fu - Physical Review B, 2020 - APS
Transition metal dichalcogenide (TMD) bilayers have recently emerged as a robust and
tunable moiré system for studying and designing correlated electron physics. In this Rapid …

Observation of chiral and slow plasmons in twisted bilayer graphene

T Huang, X Tu, C Shen, B Zheng, J Wang, H Wang… - Nature, 2022 - nature.com
Moiré superlattices have led to observations of exotic emergent electronic properties such
as superconductivity and strong correlated states in small-rotation-angle twisted bilayer …

Fractional Chern insulator states in twisted bilayer graphene: An analytical approach

PJ Ledwith, G Tarnopolsky, E Khalaf… - Physical Review …, 2020 - APS
Recent experiments on bilayer graphene twisted near the magic angle have observed
spontaneous integer quantum Hall states in the presence of an aligned hexagonal boron …

Global phase diagram of the normal state of twisted bilayer graphene

G Wagner, YH Kwan, N Bultinck, SH Simon… - Physical review …, 2022 - APS
We investigate the full doping and strain-dependent phase diagram of the normal state of
magic-angle twisted bilayer graphene (TBG). Using comprehensive Hartree-Fock …

Band structure and insulating states driven by Coulomb interaction in twisted bilayer graphene

T Cea, F Guinea - Physical Review B, 2020 - APS
We analyze the phase diagram of twisted graphene bilayers near a magic angle. We
consider the effect of the long-range Coulomb interaction, treated within the self-consistent …

Coulomb interaction, phonons, and superconductivity in twisted bilayer graphene

T Cea, F Guinea - Proceedings of the National Academy of …, 2021 - National Acad Sciences
The polarizability of twisted bilayer graphene, due to the combined effect of electron–hole
pairs, plasmons, and acoustic phonons, is analyzed. The screened Coulomb interaction …