Surface roughness and correlation length determined from x-ray-diffraction line-shape analysis on germanium (111)

Q. Shen*, J. M. Blakely, M. J. Bedzyk, K. D. Finkelstein

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

An x-ray-diffraction experiment performed on a germanium (111) crystal shows both rodlike and diffuselike scattering from the surface on a nonspecular crystal truncation rod. These scattering contributions are explained using existing theory on surface roughness. Two treatments to the Ge(111) surface have been used to provide examples with different roughness characteristics for this study. The magnitude of the roughness and the lateral scale of surface flat regions are obtained for both cases.

Original languageEnglish (US)
Pages (from-to)3480-3482
Number of pages3
JournalPhysical Review B
Volume40
Issue number5
DOIs
StatePublished - Jan 1 1989

ASJC Scopus subject areas

  • Condensed Matter Physics

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