Using embedded atom method potential of iron, structural stabilities of small Fe clusters on a Fe(110) surface were investigated by molecular dynamics studies. It was presented that a tetramer and heptamer clusters were more stable than other sizes. These two clusters had high transition energies. They could be a critical nucleus at low and high temperature, respectively. A dimer diffused more easily with lower energy barrier than ingle adatom. The trimer's rotation and dimer

shearing mechanisms were investigated.

Structural Stabilities and Diffusion of Small Fe Clusters on Fe (110) Surface: a Molecular Dynamics Study. Wang, C., Zhang, Y., Jia, Y.: Applied Surface Science, 2011, 257[22], 9329-34