Presentation Information
[1P15]The load-induced stick-slip transition at C60/graphene interfaces
*Toshiyuki Satsukawa1, Naruo Sasaki1 (1. Graduate School of Informatics and Engineering, The University of Electro-Communications)
This molecular mechanics study aims to clarify the mechanism of the unique ultralow friction at C60/graphene interfaces along the above specific commensurate scan direction. In the simulation, the outermost graphene sheet was scanned forward and backward along the commensurate direction for various loading regions. In the lower loading region, the C60 molecule takes a continuous sliding motion along the carbon bonds, and the ultralow friction state is achieved. On the other hand, in the higher regions, the C60 molecule takes a stick-slip motion, and the ultralow friction state is broken. Thus, the physical origin for the breakdown of the ultralow friction state for the higher loading force region is induced by the onset of the stick-slip motion of the C60 molecule.