7 papers
Observation of a Reconstructed Chern Insulator in Twisted Bilayer MoTe2
Min Wu, Lingxiao Li, Yunze Ouyang +12
Twisted bilayer MoTe2 is a prototypical moire material in which long-wavelength superlattices amplify electron correlations, enabling a wealth of emergent quantum phases. To date,…
Programmable Quantum Anomalous Hall Insulator in Twisted Crystalline Flatbands
Wenxuan Wang, Yijie Wang, Zaizhe Zhang +8
The isospin flavors in condensed matters can be continuously broken, forming various symmetry-broken quantum states. In moiré crystals, the competition between different isospin c…
Magnetic-Field-Driven Insulator-Superconductor Transition in Rhombohedral Graphene
Jian Xie, Zihao Huo, Zhimou Chen +5
Recent studies of rhombohedral multilayer graphene (RMG) have revealed a variety of superconducting states that can be induced or enhanced by magnetic fields, reinforcing RMG as a…
Evidence of Mott Insulator with Thermally Induced Melting Behavior in Kagome Compound Nb3Cl8
Qiu Yang, Min Wu, Jingyi Duan +12
The kagome lattice provides a playground to explore novel correlated quantum states due to the presence of flat bands in its electronic structure. Recently discovered layered kagom…
Does Moire Matter? Critical Moire Dependence with Quantum Fluctuations in Graphene Based Integer and Fractional Chern Insulators
Zihao Huo, Wenxuan Wang, Jian Xie +11
Rhombohedral multilayer graphene has emerged as a powerful platform for investigating flat-band-driven correlated phenomena, yet most aspects remain not understood. In this work, w…
Unconventional Orbital Magnetism in Graphene-based Fractional Chern Insulators
Jian Xie, Zaizhe Zhang, Xi Chen +11
Orbital magnetism in graphene originates from correlation-driven spontaneous valley symmetry breaking1-7. It can lead to various anomalous transport phenomena such as integer and f…