Intrarow diffusion of Au atoms in the Si(111)-(Sx2)Au structure

Tsuyoshi Hasegawa, Shigeyuki Hosoki

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Intra-row diffusion of Au atoms in the Si(111)-(5X2)Au reconstructed structure has been observed by using high-temperature scanning tunneling microscopy. Loosely bonded Au atoms, which are arranged with 2(n + 1 )a spacings at room temperature, diffuse in the twofold direction at higher temperatures among adsorbed sites arranged at 2a intervals. These diffusing Au atoms seem to be the reason there is a nonintegral number of Au atoms in the (5X2) unit cell.

Original languageEnglish
Pages (from-to)10300-10303
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number15
Publication statusPublished - 1996 Oct 15
Externally publishedYes


ASJC Scopus subject areas

  • Condensed Matter Physics

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