Nonlinear physics of moiré superlattices

L Du, Z Huang, J Zhang, F Ye, Q Dai, H Deng… - Nature Materials, 2024 - nature.com
Nonlinear physics is one of the most important research fields in modern physics and
materials science. It offers an unprecedented paradigm for exploring many fascinating …

Superconductivity in twisted bilayer WSe2

Y Xia, Z Han, K Watanabe, T Taniguchi, J Shan… - Nature, 2024 - nature.com
Moiré materials have enabled the realization of flat electron bands and quantum phases that
are driven by the strong correlations associated with flat bands,,–. Superconductivity has …

Non-Abelian fractionalization in topological minibands

AP Reddy, N Paul, A Abouelkomsan, L Fu - Physical Review Letters, 2024 - APS
Motivated by the recent discovery of fractional quantum anomalous Hall states in moiré
systems, we consider the possibility of realizing non-Abelian phases in topological …

Quantum anomalous Hall crystal at fractional filling of moiré superlattices

DN Sheng, AP Reddy, A Abouelkomsan… - Physical Review Letters, 2024 - APS
We predict the emergence of a state of matter with intertwined ferromagnetism, charge order,
and topology in fractionally filled moiré superlattice bands. Remarkably, these quantum …

Parent Berry curvature and the ideal anomalous Hall crystal

T Tan, T Devakul - Physical Review X, 2024 - APS
We study a model of electrons moving in a parent band of uniform Berry curvature. At
sufficiently high parent Berry curvature, we show that strong repulsive interactions …

Polarization-driven band topology evolution in twisted MoTe2 and WSe2

XW Zhang, C Wang, X Liu, Y Fan, T Cao… - Nature …, 2024 - nature.com
Motivated by recent experimental observations of opposite Chern numbers in R-type twisted
MoTe2 and WSe2 homobilayers, we perform large-scale density-functional-theory …

A microscopic perspective on moiré materials

KP Nuckolls, A Yazdani - Nature Reviews Materials, 2024 - nature.com
Contemporary quantum materials research is guided by themes of topology and electronic
correlations. A confluence of these two themes is engineered in moiré materials, an …

Non-Abelian fractional quantum anomalous Hall states and first Landau level physics of the second moiré band of twisted bilayer

CE Ahn, W Lee, K Yananose, Y Kim, GY Cho - Physical Review B, 2024 - APS
Utilizing the realistic continuum description of twisted bilayer MoTe 2 and many-body exact
diagonalization calculation, we establish that the second moiré band of twisted bilayer MoTe …

Topological flat bands, valley polarization, and interband superconductivity in magic-angle twisted bilayer graphene with proximitized spin-orbit couplings

YZ Chou, Y Tan, F Wu, S Das Sarma - Physical Review B, 2024 - APS
We study theoretically the magic-angle twisted bilayer graphene with proximity-induced
Ising and Rashba spin-orbit couplings on the top layer. Topological flat bands (with three …

Fractional Chern Insulators in Twisted Bilayer : A Composite Fermion Perspective

T Lu, LH Santos - Physical Review Letters, 2024 - APS
The discovery of fractional Chern insulators (FCIs) in twisted bilayer MoTe 2 has sparked
significant interest in fractional topological matter without external magnetic fields. Unlike the …