ISLAND DIFFUSION AND COARSENING ON METAL (100) SURFACES

Citation
Ww. Pai et al., ISLAND DIFFUSION AND COARSENING ON METAL (100) SURFACES, Physical review letters, 79(17), 1997, pp. 3210-3213
Citations number
19
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
79
Issue
17
Year of publication
1997
Pages
3210 - 3213
Database
ISI
SICI code
0031-9007(1997)79:17<3210:IDACOM>2.0.ZU;2-2
Abstract
The diffusion and coarsening of two-dimensional homoepitaxial islands on Cu(100) and Ag(100) surfaces have been studied at room temperature with time-sequenced scanning tunneling microscopy. Quantitative analys es of the dependence of island diffusion coefficient D vs the island s ide length L, D proportional to L-alpha, yield noninteger scaling expo nents which are consistent with island coalescence. Moreover, the near absence of island decay shows that the island diffusion occurs via ma ss transport along the island periphery.