Light-induced emergent phenomena in 2D materials and topological materials

C Bao, P Tang, D Sun, S Zhou - Nature Reviews Physics, 2022 - nature.com
Light–matter interaction in 2D and topological materials provides a fascinating control knob
for inducing emergent, non-equilibrium properties and achieving new functionalities in the …

Polaritons in van der Waals heterostructures

X Guo, W Lyu, T Chen, Y Luo, C Wu, B Yang… - Advanced …, 2023 - Wiley Online Library
Abstract 2D monolayers supporting a wide variety of highly confined plasmons, phonon
polaritons, and exciton polaritons can be vertically stacked in van der Waals …

Kondo lattice model of magic-angle twisted-bilayer graphene: Hund's rule, local-moment fluctuations, and low-energy effective theory

H Hu, BA Bernevig, AM Tsvelik - Physical review letters, 2023 - APS
We apply a generalized Schrieffer-Wolff transformation to the extended Anderson-like
topological heavy fermion (THF) model for the magic-angle (θ= 1.0 5°) twisted bilayer …

Topological Flat Bands in 2D Breathing‐Kagome Lattice Nb3TeCl7

H Zhang, Z Shi, Z Jiang, M Yang, J Zhang… - Advanced …, 2023 - Wiley Online Library
Flat bands (FBs) can appear in two‐dimensional (2D) geometrically frustrated systems
caused by quantum destructive interference (QDI). However, the scarcity of pure 2D …

Topological surface states and flat bands in the kagome superconductor CsV3Sb5

Y Hu, SML Teicher, BR Ortiz, Y Luo, S Peng, L Huai… - Science Bulletin, 2022 - Elsevier
Exotic quantum phenomena may appear in material systems with multiple orders or phases,
where the mutual interactions can give rise to new physics beyond that of each component …

Symmetric kondo lattice states in doped strained twisted bilayer graphene

H Hu, G Rai, L Crippa, J Herzog-Arbeitman… - Physical review …, 2023 - APS
We use the topological heavy fermion (THF) model and its Kondo lattice (KL) formulation to
study the possibility of a symmetric Kondo (SK) state in twisted bilayer graphene. Via a large …

Twisted van der waals quantum materials: Fundamentals, tunability, and applications

X Sun, M Suriyage, AR Khan, M Gao, J Zhao… - Chemical …, 2024 - ACS Publications
Twisted van der Waals (vdW) quantum materials have emerged as a rapidly developing field
of two-dimensional (2D) semiconductors. These materials establish a new central research …

Spectroscopy signatures of electron correlations in a trilayer graphene/hBN moiré superlattice

J Yang, G Chen, T Han, Q Zhang, YH Zhang, L Jiang… - Science, 2022 - science.org
ABC-stacked trilayer graphene/hexagonal boron nitride moiré superlattice (TLG/hBN) has
emerged as a playground for correlated electron physics. We report spectroscopy …

Fermionic Monte Carlo study of a realistic model of twisted bilayer graphene

JS Hofmann, E Khalaf, A Vishwanath, E Berg, JY Lee - Physical Review X, 2022 - APS
The rich phenomenology of twisted bilayer graphene (TBG) near the magic angle is
believed to arise from electron correlations in topological flat bands. An unbiased approach …

Heavy quasiparticles and cascades without symmetry breaking in twisted bilayer graphene

A Datta, MJ Calderon, A Camjayi… - Nature Communications, 2023 - nature.com
Among the variety of correlated states exhibited by twisted bilayer graphene, cascades in
the spectroscopic properties and in the electronic compressibility occur over larger ranges of …