Semiconductor moiré materials

KF Mak, J Shan - Nature Nanotechnology, 2022 - nature.com
Moiré materials have emerged as a platform for exploring the physics of strong electronic
correlations and non-trivial band topology. Here we review the recent progress in …

Colloquium: Quantum anomalous Hall effect

CZ Chang, CX Liu, AH MacDonald - Reviews of Modern Physics, 2023 - APS
The quantum Hall (QH) effect, quantized Hall resistance combined with zero longitudinal
resistance, is the characteristic experimental fingerprint of Chern insulators—topologically …

Signatures of fractional quantum anomalous Hall states in twisted MoTe2

J Cai, E Anderson, C Wang, X Zhang, X Liu… - Nature, 2023 - nature.com
The interplay between spontaneous symmetry breaking and topology can result in exotic
quantum states of matter. A celebrated example is the quantum anomalous Hall (QAH) state …

Observation of fractionally quantized anomalous Hall effect

H Park, J Cai, E Anderson, Y Zhang, J Zhu, X Liu… - Nature, 2023 - nature.com
The integer quantum anomalous Hall (QAH) effect is a lattice analogue of the quantum Hall
effect at zero magnetic field,–. This phenomenon occurs in systems with topologically non …

Thermodynamic evidence of fractional Chern insulator in moiré MoTe2

Y Zeng, Z **a, K Kang, J Zhu, P Knüppel, C Vaswani… - Nature, 2023 - nature.com
Chern insulators, which are the lattice analogues of the quantum Hall states, can potentially
manifest high-temperature topological orders at zero magnetic field to enable next …

Observation of Integer and Fractional Quantum Anomalous Hall Effects in Twisted Bilayer

F Xu, Z Sun, T Jia, C Liu, C Xu, C Li, Y Gu, K Watanabe… - Physical Review X, 2023 - APS
The interplay between strong correlations and topology can lead to the emergence of
intriguing quantum states of matter. One well-known example is the fractional quantum Hall …

Robust superconductivity in magic-angle multilayer graphene family

JM Park, Y Cao, LQ **a, S Sun, K Watanabe… - Nature Materials, 2022 - nature.com
The discovery of correlated states and superconductivity in magic-angle twisted bilayer
graphene (MATBG) established a new platform to explore interaction-driven and topological …

Fractional quantum anomalous Hall effect in multilayer graphene

Z Lu, T Han, Y Yao, AP Reddy, J Yang, J Seo… - Nature, 2024 - nature.com
The fractional quantum anomalous Hall effect (FQAHE), the analogue of the fractional
quantum Hall effect at zero magnetic field, is predicted to exist in topological flat bands …

Reproducibility in the fabrication and physics of moiré materials

CN Lau, MW Bockrath, KF Mak, F Zhang - Nature, 2022 - nature.com
Overlaying two atomic layers with a slight lattice mismatch or at a small rotation angle
creates a moiré superlattice, which has properties that are markedly modified from (and at …

Superconductivity in twisted bilayer WSe2

Y **a, 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 …