https://www.elibrary.ru/title_about_new.asp?i Materials physics and mechanics Механика и физика материалов 1605-8119 10 10.18720/MPM.3512018_10 Graphane: discrete breathers for dehydrogenation Graphane: discrete breathers for dehydrogenation Korznikova Baimova Lobzenko Liu B. Dmitriev Zhou K. Institute for Metals Superplasticity Problems of the Russian Academy of Sciences Ufa Research Center of Russian Academy of Sciences Nanyang Technological University Institute for Metals Superplasticity Problems 03 04 2018 35 1 71 79

Clusters of discrete breathers in fully hydrogenated graphene (also called gr aphane) are studied by means of molecular dynamics simulation. The energy exchange between gapdiscrete breathers is studied for clusters composed of two and three discrete breathers. It is shown that difference in the initial amplitude or in the initial vibration phase of discrete breathers affect the energyexchange between them. It is shown that the life time of single discrete breather in thermal equilibrium at 50 K is of order of 10 ps.

 nonlinear dynamics discrete breather intrinsic localized mode graphene graphane dehydrogenation

Abstract. Clusters of discrete breathers in fully hydrogenated graphene (also called gr aphane) are studied by means of molecular dynamics simulation. The energy exchange between gapdiscrete breathers is studied for clusters composed of two and three discrete breathers. It is shown that difference in the initial amplitude or in the initial vibration phase of discrete breathers affect the energyexchange between them. It is shown that the life time of single discrete breather in thermal equilibrium at 50 K is of order of 10 ps. Keywords: nonlinear dynamics; discrete breather; intrinsic localized mode; graphene; graphane; dehydrogenation.