**Author details**

Alexander V. Vakhrushev1,2\*

\*Address all correspondence to: vakhrushev-a@yandex.ru

1 Department of Mechanics of Nanostructure, Institute of Mechanics, Udmurt Federal Research Center, Ural Branch of the Russian Academy of Science, Izhevsk, Russia

2 Department of Nanotechnology and Microsystems, Kalashnikov Izhevsk State Technical University, Izhevsk, Russia
