30 citations · 48 across the 16 of their papers we have counts for
8 papers · 1 filter
Hundness in twisted bilayer graphene: correlated gaps and pairing
Seongyeon Youn, Beomjoon Goh, Geng-Dong Zhou +2
We characterize gap-opening mechanisms in the topological heavy fermion (THF) model of magic-angle twisted bilayer graphene (MATBG), with and without electron-phonon coupling, usin…
Commensurate and Incommensurate Chern Insulators in Magic-angle Bilayer Graphene
Zaizhe Zhang, Jingxin Yang, Bo Xie +12
The interplay between strong electron-electron interaction and symmetry breaking can have profound influence on the topological properties of materials. In magic angle twisted bila…
Electron phonon coupling in the topological heavy fermion model of twisted bilayer graphene
Yi-Jie Wang, Geng-Dong Zhou, Biao Lian +1
On flat bands of the magic-angle twisted bilayer graphene, exotic correlation physics unfolds. Phonons, through mediating an effective electron-electron interaction, can play a cru…
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…
Correlated insulators and charge density wave states in chirally twisted triple bilayer graphene
Geng-Dong Zhou, Yi-Jie Wang, Wen-Xuan Wang +2
Motivated by recent experimental observations of displacement-field-tuned correlated insulators at integer and half-integer fillings in chirally twisted triple bilayer graphene (CT…
Tunable Fractional Chern Insulators in Rhombohedral Graphene Superlattices
Jian Xie, Zihao Huo, Xin Lu +11
Fractional Chern insulators (FCIs) showing a transport effect with fractionally quantized Hall plateaus emerging under zero magnetic field, provide a radically new opportunity to e…
Evolution of flat band and role of lattice relaxations in twisted bilayer graphene
Qian Li, Hongyun Zhang, Yijie Wang +15
Magic-angle twisted bilayer graphene (MATBG) exhibits correlated phenomena such as superconductivity and Mott insulating state related to the weakly dispersing flat band near the F…
Molecular Pairing in Twisted Bilayer Graphene Superconductivity
Yi-Jie Wang, Geng-Dong Zhou, Shi-Yu Peng +2
We propose a theory for how the weak phonon-mediated interaction (meV) wins over the prohibitive Coulomb repulsion (meV) and leads to…