10 papers
Spin-orbit-driven quarter semimetals in rhombohedral graphene
Jing Ding, Hanxiao Xiang, Naitian Liu +7
Semimetals exhibit intriguing characteristics attributed to the coexistence of both electrons and holes. In rhombohedral multilayer graphene, a strong trigonal warping effect gives…
Layer-engineered quantum anomalous Hall effect in twisted rhombohedral graphene
Zhangyuan Chen, Naitian Liu, Jiannan Hua +13
Realizing programmable topological states in quantum anomalous Hall (QAH) insulators requires the ability to design and dynamically tune their topological invariant, the Chern numb…
Diverse high-Chern-number quantum anomalous Hall insulators in twisted rhombohedral graphene
Naitian Liu, Zhangyuan Chen, Jing Ding +11
Quantum anomalous Hall (QAH) insulators with high Chern number (C) enables multiple dissipationless edge channels for low-power-consumption electronics. We report the realization o…
Heavy fermion phase diagram in magic-angle twisted trilayer graphene
Le Zhang, Wenqiang Zhou, Xinjie Fang +5
The interplay between localized magnetic moments and itinerant electrons gives rise to exotic quantum states in condensed matter systems. Here, we demonstrate an electrically tunab…
Continuously tunable anomalous Hall crystals in rhombohedral heptalayer graphene
Hanxiao Xiang, Jing Ding, Jiannan Hua +8
The interplay of electronic interactions and nontrivial topology can give rise to a wealth of exotic quantum states. A notable example is the formation of Wigner crystals driven by…
Electric-field switchable chirality in rhombohedral graphene Chern insulators stabilized by tungsten diselenide
Jing Ding, Hanxiao Xiang, Jiannan Hua +10
Chern insulators host topologically protected chiral edge currents with quantized conductance characterized by their Chern number. Switching the chirality of a Chern insulator, nam…