Ag adsorption on a single domain Si(001)2 × 1 surface studied by electron and photoelectron diffraction

S. M. Shivaprasad, T. Abukawa, H. W. Yeom, M. Nakamura, S. Suzuki, S. Sato, K. Sakamoto, T. Sakamoto, S. Kono

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

The initial stages of Ag growth on a single domain (SD) Si(001)2 × 1 surface have been studied by LEED, XPS and X-ray photoelectron diffraction (XPD). It is observed that at room temperature (RT) Ag grows in the Stranski-Krastanov mode with the first layer of ∼ 1 monolayer coverage, with a SD 2 × 1 periodicity but the 1 2 order spots partially elongated. Annealing the RT deposited film to ∼ 80°C results in an intermediate layer with a well-ordered SD c(6 × 2) periodicity. The presence of c(6 × 2) phase has never been reported previously for Ag Si(001). Depositing Ag onto the substrate at ∼ 80°C results in an intermediate layer with a SD 2 × 3 periodicity. The Ag coverages for the SD c(6 × 2) and SD 2 × 3 phases are determined to be the same. XPD shows that the local atomic arrangements of the two SD phases are different in spite of the proximity in coverage and temperature of formation. Annealing the two SD phases to ∼ 300°C results in a transformation into a double domain (DD) 2 × 3 phase with LEED spots partially streaked along the "2 ×" direction. XPS shows no change in Ag coverage for the transformation. Depositing Ag onto substrates at temperatures greater than ∼ 160°C results in the DD 2 × 3 phase.

Original languageEnglish
Pages (from-to)L1245-L1251
JournalSurface Science
Volume344
Issue number3
DOIs
Publication statusPublished - 1995 Dec 30

Keywords

  • Adatoms
  • Growth
  • Low energy electron diffraction (LEED)
  • Low index single crystal surfaces
  • Metal-semiconductor interfaces
  • Photoelectron diffraction
  • Silicon
  • Silver
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Ag adsorption on a single domain Si(001)2 × 1 surface studied by electron and photoelectron diffraction'. Together they form a unique fingerprint.

Cite this