Journal of Physics Communication
Topological insulators, Electromagnetic theory, Green's functions, Reciprocity theorems
Electromagnetic reciprocity is studied in the presence of topological insulators (TI) with application of axion electrodynamics for harmonic electromagnetic fields. The corresponding generalized Lorentz and Feld-Tai type lemmas are derived in terms of the axion coupling parameter, and their correlation to the conditional symmetry in source-observer coordinates for the various Green dyadics is established subjected to different types of boundary conditions. Possible application of the results to the probing of the topological magneto-electric effects from TI is discussed.
H. Y. Xie and P. T. Leung, 2020, " Electromagnetic reciprocity in the presence of topological insulators " J. Phys. Commun. 4: 095014