A vertical displacement field tunes electron and hole bands very differently in an asymmetric hBN-bilayer-graphene-hBN supermoire device, and a new field-induced gap with six-fold degenerate Landau levels appears near charge neutrality.
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Electric field tunable bands in doubly aligned bilayer graphene hBN moire superlattice
A vertical displacement field tunes electron and hole bands very differently in an asymmetric hBN-bilayer-graphene-hBN supermoire device, and a new field-induced gap with six-fold degenerate Landau levels appears near charge neutrality.