Near-field energy transfer between graphene and magneto-optic media

Abstract

We consider the near-field radiative energy transfer between two separated parallel plates: graphene supported by a substrate and a magneto-optic medium. We first study the scenario in which the two plates have the same temperature. An electric current through the graphene gives rise to nonequilibrium fluctuations and induces energy transfer. Both the magnitude and direction of the energy flux can be controlled by the electric current and an in-plane magnetic field in the magneto-optic medium. This is due to the interplay between the nonreciprocal photon occupation number in the graphene and nonreciprocal surface modes in the magneto-optic plate. Furthermore, we report that a tunable thermoelectric current can be generated in the graphene in the presence of a temperature difference between the two plates.

5.5+2 pages, 4+2 figures

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• Performance improvement of three-body radiative diode driven by graphene surface plasmon polaritons
• Multiple magnetoplasmon polaritons of magneto-optical graphene in near-field radiative heat transfer
• Current-induced near-field radiative energy, linear-momentum, and angular-momentum transfer
• Non-equilibrium Green's function formalism for radiative heat transfer
• Gain-loss-engineering: a new platform for extreme anisotropic thermal photon tunneling
• Interference-Controlled Radiative Heat Transport in Time-Modulated Networks