Array of double Au–Ag chains on the Si(5 5 7) surface

Using scanning tunneling microscopy we study the topographic properties of Ag structure on the Au induced, highly ordered Si(5 5 7) surface. Topography measurements show that a small amount of Ag (0.25 ML) deposited on that surface leads to considerable modifications of the one-dimensional structure...

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Bibliographic Details
Published inApplied surface science Vol. 256; no. 15; pp. 4813 - 4817
Main Authors Krawiec, M., Jałochowski, M.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 15.05.2010
Elsevier
Subjects
Atomic chain
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
High index surfaces
Physics
Silicon
STM
Structure and morphology; thickness
Surface structure
Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)
Thin film structure and morphology
High index surfaces
Silicon
STM
Atomic chain
Surface structure
Scanning tunneling microscopy
Terrace
Bias voltage
Adatoms
Chains
Arrays
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Summary:Using scanning tunneling microscopy we study the topographic properties of Ag structure on the Au induced, highly ordered Si(5 5 7) surface. Topography measurements show that a small amount of Ag (0.25 ML) deposited on that surface leads to considerable modifications of the one-dimensional structure induced by Au atoms. In particular, we observe two different chains on each terrace, which are identified as Si adatoms and Ag chain structures. The STM topography of those chains strongly depends on the bias voltage, indicating an important role of electronic effects in this system.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2009.12.170