5 papers
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…
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…
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…