Hybrid Plasmon Modes at Chiroferrite-Graphene Interface

In this paper, numerical investigations are carried out to explore the characteristics of hybrid plasmon modes at chiroferrite-graphene interface. Kubo formula is utilized for the modeling of monolayer graphene conductivity, and the impedance boundary condition approach is applied at the chiroferrite-graphene interface to obtain the dispersion relation. Frequency dependent normalized propagation constant under the different values of graphene’s chemical potential (μ), relaxation time (τ), number of graphene layers (N), temperature (T), and constitutive parameter of chiroferrite medium such as chirality and gyrotropy are analyzed. Control on graphene and chiroferrite parameters may be useful for chiral sensing, microwave devices, antennas, and magnetic resonance imaging in the terahertz (THz) frequency band.