Lattice Effects in the Waveguide Propagation of a Magnetic EH Polariton along a Macroscopically Thin Magnetoelectric Film

摘要

It is shown that the lattice effect is able to induce previously unknown anomalies in the spectrum of the bulk magnetic EH polariton travelling along a macroscopically thin magnetoelectric film even in the presence of total coherent matching of this film to a nonmagnetic coating. The character of these anomalies substantially depends on the relationship between the Neel and Debye temperatures of a magnetic crystal.