Static and dynamic theoretical analyses of a scanning tip on suspended graphene surface
作者： Yan-Zi Yu , Jian-Gang Guo
DOI: 10.1063/1.4960581
关键词: Surface (mathematics) 、 Vertical distance 、 Diamond 、 Composite material 、 Interaction forces 、 Materials science 、 Adhesion 、 Graphene 、 A diamond 、 Nanotechnology 、 Numerical research
摘要: Recent research progress shows that graphene exhibits distinct adhesion and friction behaviors. In the paper, static dynamic analyses of a diamond tip sliding on suspended surface are conducted via theoretical numerical methods, properties between them investigated. The analytical expression interaction potential is derived based interatomic pairwise potential, then, lateral normal forces calculated. equilibrium heights energy calculated three particular sites surface. influence vertical distance studied maximum frictional force initial velocity tip. What more, scanning damping also analyzed behaviors tip, “stick-slip” phenomenon observed discussed by calculation.
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