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Helical trilayer graphene: a moiré platform for strongly-interacting topological bands
Li-Qiao Xia, Sergio C. de la Barrera, Aviram Uri +9
Quantum geometry of electronic wavefunctions results in fascinating topological phenomena. A prominent example is the intrinsic anomalous Hall effect (AHE) in which a Hall voltage…
Torsional Force Microscopy of Van der Waals Moirés and Atomic Lattices
Mihir Pendharkar, Steven J. Tran, Gregory Zaborski +13
In a stack of atomically-thin Van der Waals layers, introducing interlayer twist creates a moiré superlattice whose period is a function of twist angle. Changes in that twist angle…
Magnetic field stabilized Wigner crystal states in a graphene moiré superlattice
Guorui Chen, Ya-Hui Zhang, Aaron Sharpe +11
Wigner crystals are predicted as the crystallization of the dilute electron gas moving in a uniform background when the electron-electron Coulomb energy dominates the kinetic energ…