In this letter, based on the quantum Hall regime of magneto-optical graphene,
we have theoretically investigated the coupling of magnetoplasmon polaritons
(MPP) to surface phonon polaritons (SPhPs) by investigating the radiative heat
transfer between two graphene-coated SiO2 slabs. By applying an external
magnetic field, the separated branches of intraband and interband MPP can both
couple with SPhPs to form tunable modes, which remould the energy transport of
the system. The heat transfer mechanism is completely changed from enhancement
to attenuation due to the strong coupling, and the thermal stealthy is realized
for the graphene. The letter has great significance for the graphene-based
magneto-optical devices.Comment: 4 pages, 4 figure