Energy barriers of single-adatoms diffusion on unreconstructed and reconstructed (110) surfaces

摘要: The present paper is aimed mainly to investigate theoretically the diffusion of Ag, Cu, Au and Pt adatoms on (1 × 1) unreconstructed geometry for Cu (110), reconstructed geometries ((1 2), 3) 4)) (110) surfaces. We consider single adatom when additional atoms are deposited in adjacent row. For this study, we have used molecular statics simulations combined with embedded atom method. several systems, calculated activation barriers hopping mechanism. surfaces, trends same all considered systems except Cu/Ag system, where barrier do not change. Further, our results indicate that lead a small decreasing surfaces some while other systems; remains practically unchanged.