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We explore the non-equilibrium transport regime in graphene using a large dccurrent in combination with a perpendicular magnetic field. The strong in-planeHall field that is generated in the bulk of the graphene channel results inLandau levels that are tilted spatially. The energy of cyclotron orbits in thebulk varies as a function of the spatial position of the guiding center,enabling us to observe a series of compelling features. While Shubnikov-de Haasoscillations are predictably suppressed in the presence of the Hall field, aset of fresh magnetoresistance oscillations emerge near the charge neutralitypoint as a function of dc current. Two branches of oscillations with lineardispersions are evident as we vary carrier density and dc current, the velocityof which closely resembles the TA and LA phonon modes, suggestive ofphonon-assisted intra-Landau level transitions between adjacent cyclotronorbits. Our results offer unique possibilities to explore non-equilibriumphenomena in two-dimensional materials and van der Waals heterostructures.

Hall field-induced magneto-oscillations near charge neutrality point in graphene