Initial stages of Fe growth on clean and Sb-terminated Si(1 0 0) surfaces

Kang H. Park, Jeong Sook Ha, Wan Soo Yun

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The initial stages of Fe growth on clean and Sb-terminated Si(1 0 0) surfaces were investigated with a scanning tunnelling microscopy/spectroscopy. Due to the saturation of Si dangling bonds by Sb adatoms, nucleation sites for Fe growth are highly reduced on Sb-terminated Si(1 0 0) surfaces. We find that the sizes of islands grown on Sb-terminated surfaces are larger but the island densities are smaller than those grown on clean surfaces. Through the local I-V measurements on Fe islands, it was found that the conduction properties gradually changed from semiconducting to metallic as Fe coverage increased. It was explained in terms of the coalescence of Fe clusters and the formation of bulk metallic Fe films.

Original languageEnglish
Pages (from-to)34-40
Number of pages7
JournalSurface Science
Volume492
Issue number1-2
DOIs
Publication statusPublished - 2001 Oct 10
Externally publishedYes

Keywords

  • Antimony
  • Iron
  • Scanning tunnelling microscopy
  • Scanning tunnelling spectroscopies
  • Silicon
  • Surface structure, morphology, roughness, and topography

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

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