Synchronizing Bloch-oscillating free carriers in moiré flat bands
Ali Fahimniya,
Zhiyu Dong,
Egor Kiselev
et al.
Abstract:Achieving Bloch oscillations of free carriers under a direct current, a long-sought-after collective many-body behavior, has been notoriously hard due to stringent constraints on the band properties. We argue that the flat bands in moiré graphene fulfill the basic requirements for observing Bloch oscillations, offering an appealing alternative to the stacked quantum wells used in previous work aiming to achieve this regime. Bloch-oscillating moiré superlattices emit a comb-like spectrum of incommensurate frequ… Show more
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