Eur. Phys. J. B (2014) 87: 192
https://doi.org/10.1140/epjb/e2014-50212-4

Regular Article

Stabilization of electromagnetic solitons in thin films of topological insulators by constant electric field

¹ Volgograd Institute of Business, 400048 Volgograd, Russia
² Volgograd State University, 400062 Volgograd, Russia
³ Volgograd State Agrarian University, 400002 Volgograd, Russia

^a e-mail: yana_nn@inbox.ru

Received: 27 March 2014
Received in final form: 3 June 2014
Published online: 1 September 2014

Abstract

We consider the propagation of a variable electromagnetic field in a thin film of a topological insulator in low temperatures case at the presence of electric field. As a result we obtain an effective equation on the vector-potential amplitude of a variable electromagnetic field. We also detect some solutions, corresponding to solitons in the case of a cosine-type dispersion law for electronic subsystem. Finally, we analysed how non-linear solutions depend on the parameters of the problem and on electrostatic field.