▎ 摘　　要

In this paper, we investigate surface plasmon (SP) propagation characteristics in a ferrite loaded graphene based waveguide biased by an external magnetic flux density. Propagation lengths and dispersion features of the excited SPs can be actively tailored via applying external electro- and magneto-static bias fields. Nonreciprocal property of the structure risen from magneto-optic behavior of the ferrite is clear, in vicinity of the Larmor frequency, according to the derived dispersion equation. The structure is investigated analytically through basic electromagnetic theory. The results can be utilized in design of nonreciprocal components.