STM/STS Studies of Self-Organized Growth of Iron Suicide Nanocrystals on Vicinal Si(111) Surface

A. Wawro, S. Suto, R. Czajka, A. Kasuya

研究成果: ジャーナルへの寄稿会議記事査読

2 被引用数 (Scopus)

抄録

The evolution of iron silicide structure grown by solid state epitaxy on Si(111) vicinal surface was investigated by scanning tunnelling microscopy. The reactions, which occur on the surface, are compared for two various Fe coverages: 0.33 and 2 monolayers. The annealing at 250°C does not enable substantial recovery of the surface ordering, deteriorated by Fe deposition at room temperature. The onset of 2 × 2 surface reconstruction is observed upon annealing at 400°C. A three-dimensional growth tendency of iron silicide crystallites on a bare Si(111) 7 × 7 surface was found at 700°C. In the case of 2 monolayer coverage crystallites nucleate along the edges of substrate terraces forming a regular array of nanometer size dots. Basing on atomically resolved spectroscopic effects and statistical considerations, structure of iron silicide nanocrystallites as well as Schottky-like character of the barrier at the interface between metallic crystallite and semiconducting substrate is deduced.

本文言語英語
ページ(範囲)303-319
ページ数17
ジャーナルActa Physica Polonica A
104
3-4
DOI
出版ステータス出版済み - 2003
イベントProceedings of the 3rd International Symposium Scanning Probe Spectroscopy and Related Methods - Poznan, ポーランド
継続期間: 2003 7月 162003 7月 19

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