Is the elongation of Ge huts in the low-temperature regime governed by kinetics?

I. Goldfarb*, Leslie Banks-Sills, R. Eliasi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Contrary to pyramids and domes, elongated huts on a Si(001) substrate are commonly considered as kinetically limited structures. In this work, however, based on detailed scanning tunneling microscopy observations of Ge huts growing on Si(001) at temperatures below 550°C and finite element analysis, the possibility of an equilibrium-driven elongation is raised, where hut-preceding pits are thought to lift the energetic degeneracy of {105} facets and cause elongation along energetically preferred directions.

Original languageEnglish
Article number206101
JournalPhysical Review Letters
Volume97
Issue number20
DOIs
StatePublished - 2006

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