%0 Journal Article %T Molecular dynamics simulations of atomic-scale friction in diamond-silver sliding system %A PengZhe Zhu %A YuanZhong Hu %A Hui Wang %J Chinese Science Bulletin %@ 1861-9541 %D 2009 %I %R 10.1007/s11434-009-0579-3 %X Molecular dynamics simulations have been performed to explore the atomic-scale sliding friction, especially the stick-slip friction, in a system consisting of a diamond slider and a silver substrate. The mechanisms of the stick-slip behavior are investigated by considering sliding speeds between 10 m/s and 200 m/s. The analyses of the shear distance between the upmost layer and the downmost layer and displacements of a column of atoms in the slider show that shearing deformation of the slider is the main cause of the stick-slip phenomenon. Our simulations also present that a commensurate fit between the two contact surfaces is unimportant for the stick-slip friction. %K atomic-scale friction %K stick-slip %K molecular dynamics simulation %K shearing deformation %U http://link.springer.com/article/10.1007/s11434-009-0579-3