Size stabilization of arsenic precipitates in nonstoichiometric GaAs-based compounds

C. Y. Hung, J. S. Harris, A. F. Marshall, R. A. Kiehl

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

A narrowing of the size distribution of arsenic precipitates in nonstoichiometric GaAs-based compounds is observed during annealing for precipitates in the small size regime of a few nanometers. This improvement in size uniformity is in marked contrast to what is observed for larger precipitates, which coarsen with a widening distribution similar to that of classical Ostwald ripening. Inverse coarsening caused by an elastic interaction between small precipitates due to coherency strain is a possible mechanism for this interesting and potentially useful behavior.

Original languageEnglish (US)
Pages (from-to)917-919
Number of pages3
JournalApplied Physics Letters
Volume75
Issue number7
DOIs
StatePublished - Aug 16 1999
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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