J.Zhang a , S.H.Cho b , and J.M.Seo b a Department of Physics, Yunnan University, Kunming 650091,P.R.China b Department of Physics, Chonbuk National University, Chonju 561-756, Korea Growth and disorder of Ag nano Growth and disorder of Ag nano wires on Si(5 5 12)-2 wires on Si(5 5 12)-2 1 surface 1 surface • Structure of clean Si(5 5 1 2)-21 • Steps and kinks on clean Si(5 5 12)-21 • Growth of Ag nanowires on Si (5 5 12)-21 Contents