Gate-dependent THz photocurrent spectroscopy resolves about 1-20 meV miniband gaps at the satellite Dirac points of graphene/hBN moiré superlattices, including a previously unobserved conduction-band local gap.
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Unveiling the Miniband Structure of Graphene Moir\'e Superlattices via Gate-dependent Terahertz Photocurrent Spectroscopy
Gate-dependent THz photocurrent spectroscopy resolves about 1-20 meV miniband gaps at the satellite Dirac points of graphene/hBN moiré superlattices, including a previously unobserved conduction-band local gap.