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 …

Electronic materials with nanoscale curved geometries

P Gentile, M Cuoco, OM Volkov, ZJ Ying… - Nature …, 2022 - nature.com
As the dimensions of a material shrink from an extended bulk solid to a nanoscale structure,
size and quantum confinement effects become dominant, altering the properties of the …

[HTML][HTML] Imaging quantum oscillations and millitesla pseudomagnetic fields in graphene

H Zhou, N Auerbach, M Uzan, Y Zhou, N Banu, W Zhi… - Nature, 2023 - nature.com
The exceptional control of the electronic energy bands in atomically thin quantum materials
has led to the discovery of several emergent phenomena. However, at present there is no …

Magnetic suppression of non-Hermitian skin effects

M Lu, XX Zhang, M Franz - Physical review letters, 2021 - APS
Skin effect, where macroscopically many bulk states are aggregated toward the system
boundary, is one of the most important and distinguishing phenomena in non-Hermitian …

Ubiquitous defect-induced density wave instability in monolayer graphene

AC Qu, P Nigge, S Link, G Levy, M Michiardi… - Science …, 2022 - science.org
Quantum materials are notoriously sensitive to their environments, where small
perturbations can tip a system toward one of several competing ground states. Graphene …

Non-Hermitian exceptional Landau quantization in electric circuits

XX Zhang, M Franz - Physical Review Letters, 2020 - APS
Alternating current RLC electric circuits form an accessible and highly tunable platform
simulating Hermitian as well as non-Hermitian (NH) quantum systems. We propose here a …

Pseudomagnetic fields enabled manipulation of on-chip elastic waves

M Yan, W Deng, X Huang, Y Wu, Y Yang, J Lu, F Li… - Physical Review Letters, 2021 - APS
The physical realization of pseudomagnetic fields (PMFs) is an engaging frontier of
research. As in graphene, elastic PMF can be realized by the structural modulations of Dirac …

Giant and controllable valley currents in graphene by double pumped thz light

S Sharma, D Gill, S Shallcross - Nano Letters, 2023 - ACS Publications
The field of valleytronics considers the creation and manipulation of “valley states”, charge
excitations characterized by a particular value of the crystal momentum in the Brillouin zone …

Strain-induced plasmon confinement in polycrystalline graphene

S Zanotto, L Bonatti, MF Pantano, V Miseikis… - ACS …, 2023 - ACS Publications
Terahertz spectroscopy is a perfect tool to investigate the electronic intraband conductivity of
graphene, but a phenomenological model (Drude-Smith) is often needed to describe …

Moiré fringe induced gauge field in photonics

W Wang, W Gao, X Chen, F Shi, G Li, J Dong… - Physical Review Letters, 2020 - APS
We realize moiré fringe induced gauge field in a double-layer photonic honeycomb
metacrystal with mismatched lattice constants. Benefitting from the generated strong …