Attractive Migration and Coalescence: A Significant Process in the Coarsening of [Formula presented] Islands on the Si(111) Surface

W. C. Yang, M. Zeman, H. Ade, Robert Nemanich

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

The dynamics and coarsening of [Formula presented] islands on Si(111) surfaces are studied in real time with photoelectron emission microscopy. A significant fraction of events are observed in which nearby islands move attractively toward each other and subsequently coalesce. It is proposed that attractive island migration is due to the growth-decay flow of the island edges driven by a nonuniform surface concentration around the islands. The local surface concentration is induced by the neighboring islands. This coarsening mechanism should significantly affect the evolution of the island distribution.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review Letters
Volume90
Issue number13
DOIs
StatePublished - Jan 1 2003
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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