Top, schematic of the tTLG sample. Top platinum (Pt) gate and bottom graphite (Gr) gate voltages, {V}_{rm{tg}}^{ rm{dc}} and {V}_{rm{bg}}^{ rm{dc}}+{V}_{rm{bg}}^{ rm{ac}} , and the corresponding a.c. magnetic field {B}_{z}^{rm{ac}} imaged by the scanning SOT are indicated. Bottom, schematic of alternating tTLG.
