Conduction Band Replicas in a 2D Moiré Semiconductor Heterobilayer
Abigail J. Graham,
Heonjoon Park,
Paul V. Nguyen
et al.
Abstract:Stacking monolayer semiconductors creates moireṕ atterns, leading to correlated and topological electronic phenomena, but measurements of the electronic structure underpinning these phenomena are scarce. Here, we investigate the properties of the conduction band in moiréheterobilayers of WS 2 /WSe 2 using submicrometer angle-resolved photoemission spectroscopy with electrostatic gating. We find that at all twist angles the conduction band edge is the K-point valley of the WS 2 , with a band gap of 1.58 ± 0.03… Show more
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