RHEED Investigation of the Au(001)-p(2×2)-As Structure Induced by the Deposition-Concurrent Surface Segregation of As

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概要

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• We observed the p(2×2) structure on the surface of Au(001) during the epitaxial growth of Fe/Au multilayers on GaAs(001). This structure disappeared after removal of the segregated As atoms by sputter etching for a short period, and transformed to a hexagonal structure of the 5×1 type, the well-known surface reconstruction of the clean Au(001) surface. When the deposition of Au was conducted on sputter-etched clean surfaces of Fe(001), the surface structure was of the 5×1 type instead of p(2×2). These results show that the p(2×2) structure is induced by the surface segregation of As on Au surfaces during the deposition. The p(2×2) structure transformed to 1×1 after depositing less than 0.4 ML of Fe atoms. The correlation between the process of the deposition-concurrent surface segregation and the observed surface structure is discussed.

• 社団法人応用物理学会の論文
• 1991-11-15

著者

• Sano Ken-ichi

  Research Institute For Metal Surfaces Of High Performance (rimes) Incorporated C

• Miyagawa Tsugio

  O Technical Research Division

関連論文

• Surface Segregations during Epitaxial Growth of Fe/Au Multilayers on GaAs(001)
• RHEED Investigation of the Au(001)-p(2×2)-As Structure Induced by the Deposition-Concurrent Surface Segregation of As

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