Silver-Induced 3×3 Phase on 6H-SiC(0001)√3×√3 Surface
The processes of structural and morphological change of a 6H-SiC(0001)√3×√3 surface induced by Ag deposition and annealing have been studied by scanning tunneling microscopy (STM). A surface phase with 3×3 periodicity was found for Ag adsorption onto the √3×√3 surface at 500°C. STM images of this su...
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Veröffentlicht in: | Japanese Journal of Applied Physics 2000-07, Vol.39 (7S), p.4343 |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The processes of structural and morphological change of a 6H-SiC(0001)√3×√3
surface induced by Ag deposition and annealing have been studied by scanning tunneling microscopy
(STM). A surface phase with 3×3 periodicity was found for Ag adsorption onto the √3×√3
surface at 500°C. STM images of this surface revealed one round protrusion per 3×3 unit
cell in the empty state, and this round protrusion demonstrated a trimer like appearance in the filled
state. We also observed the presence of 2D-island-like areas with no periodicity, which were surrounded
by the 3×3-Ag surface phase. These structures disappeared and the original √3×√3
surface phase was recovered by annealing at 600°C. |
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ISSN: | 0021-4922 1347-4065 |
DOI: | 10.1143/JJAP.39.4343 |