Application of moiré fringes in investigations of subsurface imperfections - A study of dislocations and strain fields under the reconstructed surface layer of Au(001) by scanning tunneling microscopy

Zheng Gai, Yi He, Xiaowei Li, J. F. Jia, W. S. Yang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

It is demonstrated that the moiré fringes of the incommensurate quasihexagonal reconstructed overlayer and the underlying Au(001) substrate can be used as a "magnifier" to study subsurface imperfections with scanning tunneling microscopy, and that an unprecedented lateral precision of better than 0.1 Å can be achieved in the measurement of atomic shifts by means of scanning tunneling microscopy. As moiré fringes exist in many surfaces and adsorbate systems the method is expected to have wide applications.

Original languageEnglish
Pages (from-to)96-102
Number of pages7
JournalSurface Science
Volume365
Issue number1
DOIs
StatePublished - Sep 10 1996
Externally publishedYes

Keywords

  • Classical model calculations of subsurface defects
  • Gold
  • Scanning tunneling microscopy
  • Single crystal surface
  • Surface reconstruction
  • Surface stress

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