Giant magneto-drag in graphene at charge neutrality

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We report experimental data and theoretical analysis of Coulomb drag between two closely positioned graphene monolayers in weak magnetic field.

• Close enough to the neutrality point, coexistence of electrons and holes in each layer leads to a dramatic increase of the drag resistivity.
• Away from charge neutrality, we observe non-zero Hall drag.
• The observed phenomena are explained by decoupling of electric and quasiparticle currents which are orthogonal at charge neutrality.