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Stacking enabled strong coupling of atomic motion to interlayer excitons in van der Waals heterojunction photodiodes
Fatemeh Barati, Trevor B. Arp, Shanshan Su +6
We reveal stacking-induced strong coupling between atomic motion and interlayer excitons through photocurrent measurements of WSe/MoSe heterojunction photodiodes. Strong co…
Excitonic and valleytronic signatures of correlated states at fractional fillings of a moiré superlattice
Erfu Liu, Takashi Taniguchi, Kenji Watanabe +3
Moiré superlattices are excellent platforms to realize strongly correlated quantum phenomena, such as Mott insulation and superconductivity. In particular, recent research has reve…
Multipath optical recombination of intervalley dark excitons and trions in monolayer WSe
Erfu Liu, Jeremiah van Baren, Ching-Tarng Liang +5
Excitons and trions (or exciton-polarons) in transition metal dichalcogenides (TMDs) are known to decay predominantly through intravalley transitions. Electron-hole recombination a…