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Visualizing and manipulating chiral interface states in a moiré quantum anomalous Hall insulator
Canxun Zhang, Tiancong Zhu, Salman Kahn +7
Moiré systems made from stacked two-dimensional materials host novel correlated and topological states that can be electrically controlled via applied gate voltages. We have used t…
Local spectroscopy of a gate-switchable moiré quantum anomalous Hall insulator
Canxun Zhang, Tiancong Zhu, Tomohiro Soejima +7
In recent years, correlated insulating states, unconventional superconductivity, and topologically non-trivial phases have all been observed in several moiré heterostructures. Howe…
Mapping Charge Excitations in Generalized Wigner Crystals
Hongyuan Li, Ziyu Xiang, Emma Regan +9
Transition metal dichalcogenide-based moire superlattices exhibit very strong electron-electron correlations, thus giving rise to strongly correlated quantum phenomena such as gene…
Charge transfer dynamics in MoSe/hBN/WSe heterostructures
Yoseob Yoon, Zuocheng Zhang, Ruishi Qi +6
Ultrafast charge transfer processes provide a facile way to create interlayer excitons in directly contacted transition metal dichalcogenide (TMD) layers. More sophisticated hetero…
Imaging Quantum Interference in Stadium-Shaped Monolayer and Bilayer Graphene Quantum Dots
Zhehao Ge, Dillon Wong, Juwon Lee +10
Experimental realization of graphene-based stadium-shaped quantum dots (QDs) have been few and incompatible with scanned probe microscopy. Yet, direct visualization of electronic s…
Spectroscopy Signatures of Electron Correlations in a Trilayer Graphene/hBN Moiré Superlattice
Jixiang Yang, Guorui Chen, Tianyi Han +12
ABC-stacked trilayer graphene/hBN moiré superlattice (TLG/hBN) has emerged as a playground for correlated electron physics. We report spectroscopy measurements of dual-gated TLG/hB…