Thermodynamic evidence of fractional Chern insulator in moiré MoTe2

Y Zeng, Z Xia, 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 …

Integer and fractional Chern insulators in twisted bilayer MoTe2

Y Zeng, Z Xia, K Kang, J Zhu, P Knüppel… - arXiv preprint arXiv …, 2023 - arxiv.org
Chern insulators, which are the lattice analogs of the quantum Hall states, can potentially
manifest high-temperature topological orders at zero magnetic field to enable next …

Evidence of the fractional quantum spin Hall effect in moiré MoTe2

K Kang, B Shen, Y Qiu, Y Zeng, Z Xia, K Watanabe… - Nature, 2024 - nature.com
Quantum spin Hall (QSH) insulators are two-dimensional electronic materials that have a
bulk band gap similar to an ordinary insulator but have topologically protected pairs of edge …

Tunable correlated Chern insulator and ferromagnetism in a moiré superlattice

G Chen, AL Sharpe, EJ Fox, YH Zhang, S Wang… - Nature, 2020 - nature.com
Studies of two-dimensional electron systems in a strong magnetic field revealed the
quantum Hall effect, a topological state of matter featuring a finite Chern number C and …

Quantum anomalous Hall effect from intertwined moiré bands

T Li, S Jiang, B Shen, Y Zhang, L Li, Z Tao, T Devakul… - Nature, 2021 - nature.com
Electron correlation and topology are two central threads of modern condensed matter
physics. Semiconductor moiré materials provide a highly tuneable platform for studies of …

Contrasting twisted bilayer graphene and transition metal dichalcogenides for fractional Chern insulators: An emergent gauge picture

H Li, Y Su, YB Kim, HY Kee, K Sun, SZ Lin - Physical Review B, 2024 - APS
The recent experimental discovery of the zero-field fractional Chern insulator (FCI) in twisted
MoTe 2 moiré superlattices has sparked immense interest in this exotic topological quantum …

Electrical switching of magnetic order in an orbital Chern insulator

H Polshyn, J Zhu, MA Kumar, Y Zhang, F Yang… - Nature, 2020 - nature.com
Magnetism typically arises from the joint effect of Fermi statistics and repulsive Coulomb
interactions, which favours ground states with non-zero electron spin. As a result, controlling …

Strongly correlated Chern insulators in magic-angle twisted bilayer graphene

KP Nuckolls, M Oh, D Wong, B Lian, K Watanabe… - Nature, 2020 - nature.com
Interactions between electrons and the topology of their energy bands can create unusual
quantum phases of matter. Most topological electronic phases appear in systems with weak …

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 …

Gate-tunable fractional Chern insulators in twisted double bilayer graphene

Z Liu, A Abouelkomsan, EJ Bergholtz - Physical Review Letters, 2021 - APS
We predict twisted double bilayer graphene to be a versatile platform for the realization of
fractional Chern insulators readily targeted by tuning the gate potential and the twist angle …