Anisotropic diffusion of Cu adatoms on strained Cu (111) surface

作者：Wang Y X^*; Pan Z Y; Liu T J; Jiang X M; Zhou L; Zhu J

来源：Applied Surface Science, 2006, 253(4): 1748-1752.

DOI：10.1016/j.apsusc.2006.03.007

• diffusion of adatoms
• strained Cu (111) surface
• thin film growth
• molecular dynamic simulation

Diffusion of Cu atoms on a strained Cu (I 1 1) surface was studied by molecular dynamic simulation using an EAM potential. The anisotropic diffusion behaviour is found when the uniaxial strain is imposed on the surface, which does not exist under the biaxial strain. The migration of the adatom is suppressed along the tensile strain direction. The results suggest that different island morphology can be obtained by controlling anisotropic diffusion of adatoms on the strained surfaces during film growth.

• 出版日期2006-12-15
• 单位复旦大学