Propagation of electromagnetic waves in conducting graphene-like carbon nanoallotropes

Propagation of electromagnetic waves in graphene-like conducting carbon crystals with the (C)$_{4\nu}$, and (C)$_{6\nu}$ symmetries is studied. It is demonstrated that only TM waves can exist in such crystals. The comparative analysis of such waves in different structures is performed. It is shown that the structures under study are superior to classical graphene with respect to excitation of electromagnetic waves.