Generalized method of image dyons for quasi-two dimensional slabs with ordinary - topological insulator interfaces

Electrostatic charges near the interface between topological (TI) and ordinary (OI) insulators induce magnetic fields in medium that can be described through so-called method of image dyons (electric charge - monopole pairs), magnetoelectric extension classical electrostatics. Here, we provide expressions for ensuing potentials a system comprised by two planar-parallel OI-TI interfaces conforming finite-width slab. The obtained formulae extend earlier work they account all different combinations materials forming slab its surroundings, including asymmetric systems, as well possible external magnetization orientations on interfaces. equations are susceptible implementation simple computational codes, to solved recurrently, order model quantum wells, thin films, or layers two-dimensional materials. We exemplify this calculating induced point nanometer-thick means Mathematica code made available repositories.