4 papers
Exciton-roton mode in moiré fractional Chern insulators
Xiaoyang Shen, Zijian Zhou, Ruiping Guo +4
Moiré fractional Chern insulators (FCIs) are a novel class of quantum matter that realizes fractional quantum Hall (FQH) physics in zero magnetic field and provides a platform for…
Magnetorotons in Moiré Fractional Chern Insulators
Xiaoyang Shen, Chonghao Wang, Xiaodong Hu +5
The discovery of fractional Chern insulators (FCIs) unlocks exciting opportunities to explore emergent physical excitations arising from topological and geometric effects in novel…
Fractional Chern insulators in moiré flat bands with high Chern numbers
Chonghao Wang, Xiaoyang Shen, Ruiping Guo +3
Recent discoveries of zero-field fractional Chern insulators in moiré materials have attracted intensive research interests. However, most current theoretical and experimental att…
Stabilizing fractional Chern insulators via exchange interaction in moiré systems
Xiaoyang Shen, Chonghao Wang, Ruiping Guo +3
Recent experimental discovery of fractional Chern insulator in moiré Chern band in twisted transition metal dichalocogenide homobilayers has sparked intensive interest in explorin…