Active Control of Near-Field Radiative Heat Transfer Between InSb and Graphene Multilayered Magneto-Optical Metamaterials

Abstract

We theoretically investigate the active control of the near-field radiative heat transfer (NFRHT) between two multilayered metamaterials consisting of alternating two kinds of magneto-optical materials, i.e., graphene and InSb. The active control of NFRHT can be realized by applying an external perpendicular magnetic field. We found that, when the chemical potential of graphene μ is 0.05 eV or 0.1 eV, the surface magneto-plasmon polaritons (MPPs) gradually split, and one part moves toward higher frequencies with the increase of the magnetic field. When H = 7 T, the relative thermal magnetoresistance ratio is as high as 82.2% compared with the zero field for μ = 0.05 eV. And most importantly, due to the strong coupling between the MPPs of graphene and the surface modes of InSb, when μ = 0.7 eV, the heat flux reaches 286% compared with the zero field by changing the magnetic field to 1 T. In addition, the effect of the thicknesses of InSb, period number and vacuum gap on heat transfer are also investigated. Through the combined effect of the external magnetic field, the chemical potential of graphene and other factors on the local surface electromagnetic modes, the active control of the NFRHT between two multilayered metamaterials can be realized.