▎ 摘　　要

In this article, we introduce a Faraday rotator based on the gyroelectric (e.g. InSb) and gyromagnetic (e.g. MnF2) materials. We have designed a single layer of graphene placed on anisotropic materials, enhancing the Faraday rotation up to 30 degrees. More than 80% transmission has been achieved in the THz band (1 THz-7 THz). This design opens up a new way in ultrathin magneto-optical nanophotonic devices to realize polarization rotators with high transmittance in the THz band.