Savchenko A. Magnetic polariton in centrosymmetrical antiferromagnetic structures: effects of electrical field

The influence of anisotropic quadratic magneto-optical interactions on the polariton dynamic centrosymmetrical compensated antiferromagnetic mediums, which are located in external DC electric field, is considered in the dissertation. The conditions of formation and dispersive equations of surface magnetic polaritons of compensated centrosymmetrical antiferromagnetic, which is located in the external DC electric field are investigated. The new type of one-component surface magnetic TM- polaritons, caused by quadratic magneto-optical interactions, is found. The features of reflection and propagation of volume electromagnetic wave through interface "centrosymmetrical antiferromagnetic medium - dielectric" due external DC electric field are revealed. It is shown that the simultaneous influence of quadratic magneto-optical and inhomogeneous exchange interactions results to the some peculiarities of dynamics volume polaritons and new surface magnetic two-component polariton of TM - type existence.