Abstract
The initial growth process of a Fe thin film on a hydrogen-terminated Si(111)-(1 × 1) surface is investigated through direct atomic scale measurements by using scanning tunneling microscopy (STM) and spectroscopy (STS). By depositing Fe onto the substrate at room temperature, nanometer-size Fe clusters having a (111)-oriented body-centered-cubic structure are formed on the substrate surface with maintaining the (1 × 1) structure. As the clusters grow, hill-like structures composed of {110} nano-facets appear on the surface of the Fe clusters. In the empty-state STM image, a depression of the substrate surface is observed at the periphery of a Fe nanocluster. The depression indicates the formation of a Schottky junction between the Fe nanocluster and the substrate surface.
Original language | English |
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Pages (from-to) | 52-57 |
Number of pages | 6 |
Journal | Surface Science |
Volume | 686 |
DOIs | |
Publication status | Published - 2019 Aug |
Keywords
- H-terminated Si(111)
- Iron
- Local band bending
- Nanocluster
- Scanning tunneling microscopy and spectroscopy
- Thin film growth
ASJC Scopus subject areas
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry