Paper Title:
Nucleation and Reaction of Ag on 4H-SiC(0001)
  Abstract

Low-energy electron diffraction (LEED), scanning tunneling microscopy (STM) and spectroscopy (STS), and Auger electron spectroscopy (AES) were used for a study of silver interaction with the (3×3) and ° × 30 ) 3 3 ( R surface phases of clean 4H-SiC(0001). The development of the surface structure and morphology after room temperature (RT) deposition and annealing was investigated. On the (3×3) phase silver forms small clusters leaving the initial reconstruction intact. At high coverages three-dimensional (3D) growth (Vollmer-Weber mode) was found. For the ° × 30 ) 3 3 ( R phase the initial structure seems more disturbed upon Ag deposition and thermally induced diffusion. Yet, no new surface phase develops. In both cases Ag can be removed from the surface by annealing, but Ag appears to be more stable on the ° × 30 ) 3 3 ( R phase according to AES.

  Info
Periodical
Materials Science Forum (Volumes 483-485)
Edited by
Roberta Nipoti, Antonella Poggi and Andrea Scorzoni
Pages
741-744
DOI
10.4028/www.scientific.net/MSF.483-485.741
Citation
S. Soubatch, U. Starke, "Nucleation and Reaction of Ag on 4H-SiC(0001)", Materials Science Forum, Vols. 483-485, pp. 741-744, 2005
Online since
May 2005
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$32.00
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