6 papers
Sliding-tuned Quantum Geometry in Moiré Systems: Nonlinear Hall Effect and Quantum Metric Control
Shi-Ping Ding, Miao Liang, Tian-Le Wu +4
Sliding is a ubiquitous phenomenon in moiré systems, but its direct influence on moiré bands, especially in multi-twist moiré systems, has been largely overlooked to date. Here, we…
Theory of Localized States in Quasiperiodic Lattices
Jin-Rong Chen, Xin-Yu Guo, Shi-Ping Ding +4
The physics of localized states in quasiperiodic lattices has been extensively studied for decades, but still lacks an comprehensive theoretical framework. Recently, we developed a…
Flat Band and Many-body Gap in Chirally Twisted Triple Bilayer Graphene
Wenlu Lin, Wenxuan Wang, Shimin Cao +8
We experimentally investigate the band structures of chirally twisted triple bilayer graphene. The new kind of moiré structure, formed by three pieces of helically stacked Bernal b…
Energy Bands of Incommensurate Systems
Xin-Yu Guo, Jin-Rong Chen, Chen Zhao +4
Energy band theory is a fundamental cornerstone of condensed matter physics. According to conventional wisdom, discrete translational symmetry is mandatory for defining energy band…
Hofstadter spectrum in a semiconductor moiré lattice
Chen Zhao, Ming Wu, Zhen Ma +4
Recently, the Hofstadter spectrum of a twisted heterobilayer has been observed in experiment [C. R. Kometter, et al. Nat.Phys.19, 1861 (2023)], but the orig…
Correlated Charge Density Wave Insulators in Chirally Twisted Triple Bilayer Graphene
Wenxuan Wang, Gengdong Zhou, Wenlu Lin +16
Electrons residing in flat-band system can play a vital role in triggering spectacular phenomenology due to relatively large interactions and spontaneous breaking of different dege…