6 papers · 1 filter
Tunable Extended Magnetic Non-Fermi Liquid in Graphene Moiré Heterostructures
Yongqin Xie, Jian Wang, Moyu Chen +13
Exploring exotic quantum metallic states beyond Landau's Fermi liquid theory remains a central focus in condensed matter physics. Such non-Fermi liquid behavior is mostly observed…
Theory of Integer Quantum Hall Effect in Irrational Magnetic Field
Zhao-Wen Miao, Chen Zhao, Jin-Hua Gao +1
The conventional theory of the integer quantum Hall effect (IQHE) fails for irrational magnetic fields owing to the breakdown of magnetic translational symmetry. Here, based on the…
Theory of Correlated Hofstadter Spectrum in Magic-Angle Graphene
Chen Zhao, Zhaowen Miao, Zhen Ma +4
The magnetic-field-induced correlated Chern insulator (CCI) states in magic-angle twisted bilayer graphene (MATBG) have been intensively studied in experiments, but a simple and cl…
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…
Moiré flat bands in alternating twisted multilayer
Miao Liang, Shi-Ping Ding, Ming Wu +2
The long-awaited fractional quantum anomalous Hall (FQAH) effect recently has been observed in the twisted homobilayers, causing a great sensation. Here, we theor…