5 papers
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…
Berry Trashcan With Short Range Attraction:Exact Superconductivity in Rhombohedral Graphene
Ming-Rui Li, Yves H. Kwan, Hong Yao +1
We show the presence of analytic superconducting ground states in the Berry Trashcan -- a minimal model of rhombohedral graphene valid for layers -- under s…
Higher Chern bands in helical homotrilayer transition metal dichalcogenides
Jungho Daniel Choi, Nicolás Morales-Durán, Yves H. Kwan +3
We propose helically twisted homotrilayer transition metal dichalcogenides as a platform for realizing correlated topological phases of matter with higher and tunable Chern numbers…
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…
"Berry Trashcan" Model of Interacting Electrons in Rhombohedral Graphene
B. Andrei Bernevig, Yves H. Kwan
We present a model for interacting electrons in a continuum band structure that resembles a ``trashcan'', with a flat bottom of radius beyond which the dispersion increases r…