Lateral alloy segregation in thin heteroepitaxial films

J. M. Reich, X. B. Niu, Y. J. Lee, R. E. Caflisch, C. Ratsch

Research output: Contribution to journalArticlepeer-review


Alloy segregation is believed to be an important factor in the growth of the wetting layer and subsequent formation of islands during heteroepitaxy. We report simulated annealing results that determine the lowest-energy configuration of a strained system. Our results indicate that in addition to vertical segregation, there is also an energetic driving force for lateral segregation and formation of subsurface features before island formation. We believe that these subsurface features play a crucial role in the nucleation of islands.

Original languageEnglish (US)
Article number073405
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number7
StatePublished - Feb 13 2009

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


Dive into the research topics of 'Lateral alloy segregation in thin heteroepitaxial films'. Together they form a unique fingerprint.

Cite this