Smooth growth fronts in Si/Ge heteroepitaxy by kinetic growth manipulation

W.C.U. Wulfhekel, Henricus J.W. Zandvliet, B.J. Hattink, G. Rosenfeld, George Comsa, Bene Poelsema

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

A promising route for growing atomically flat Si on Ge(100) is described. The key to this achievement is the control of growth kinetics on an atomic level. We have identified the cause for the development of rough growth fronts: the descent of atoms across steps, a prerequisite for prolonged layer-by-layer growth, is strongly suppressed at double steps. The developedprocedure for smooth growth avoids the formation of these double steps. The approach can be applied at low temperature (<550 K) and thus inherently avoids ill chemical definition of the interface due to intermixing. It is expected to be generally applicable for epitaxy of pure Si and Ge on both Ge(100) and Si(100) substrates.
Original languageEnglish
Pages (from-to)15359-15362
Number of pages4
JournalPhysical review B: Condensed matter and materials physics
Volume1998
Issue number58
DOIs
Publication statusPublished - 1998

Keywords

  • METIS-128659
  • IR-73148

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