Dynamic chaotisation of the electronic subsystem in a graphene superlattice subjected to the electromagnetic radiation

Abstract

The chaotic behaviour of the electron subsystem in a graphene superlattice is studied by the Melnikov method. The dynamic chaos of electrons in a graphene superlattice is shown to appear for certain intervals of frequencies of incident electromagnetic radiation. The frequency dependence of the radiation critical amplitude which determines the bound of chaos appearance is investigated. The values of radiation frequency at which the critical amplitude increases indefinitely were found.