Diffusion and clustering of Ag atoms on Si(111)7 × 7 surface

Jacek Osiecki; Hiroki Kato; Atsuo Kasuya; Shozo Suto

doi:10.1143/JJAP.45.2056

Diffusion and clustering of Ag atoms on Si(111)7 × 7 surface

Jacek Osiecki, Hiroki Kato, Atsuo Kasuya, Shozo Suto

SCI - Physics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We investigated the adsorption, diffusion, and clustering of Ag atoms on a Si(111)7 × 7 surface by scanning tunneling microscopy. The three kinds of structure, i.e., monomers, dimers, and clusters, were observed at a coverage of 0.02 monolayer of Ag atoms. In particular, dimers in unfaulted half unit cells (UHUCs) were observed. We found that monomers in UHUCs jump to the next HUCs with a lifetime of (5.6 ± 0.4) × 10³ s. We also measured height oscillation for the cross section analysis of dimers in UHUCs and proposed that Ag dimers move along three stable sites in HUCs in 0.5 ms.

Original language	English
Pages (from-to)	2056-2058
Number of pages	3
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	45
Issue number	3 B
DOIs	https://doi.org/10.1143/JJAP.45.2056
Publication status	Published - 2006 Mar 27

Keywords

Adsorption
Scanning tunneling microscopy
Silver
Surface diffusion

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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T1 - Diffusion and clustering of Ag atoms on Si(111)7 × 7 surface

AU - Osiecki, Jacek

AU - Kato, Hiroki

AU - Kasuya, Atsuo

AU - Suto, Shozo

PY - 2006/3/27

Y1 - 2006/3/27

N2 - We investigated the adsorption, diffusion, and clustering of Ag atoms on a Si(111)7 × 7 surface by scanning tunneling microscopy. The three kinds of structure, i.e., monomers, dimers, and clusters, were observed at a coverage of 0.02 monolayer of Ag atoms. In particular, dimers in unfaulted half unit cells (UHUCs) were observed. We found that monomers in UHUCs jump to the next HUCs with a lifetime of (5.6 ± 0.4) × 103 s. We also measured height oscillation for the cross section analysis of dimers in UHUCs and proposed that Ag dimers move along three stable sites in HUCs in 0.5 ms.

AB - We investigated the adsorption, diffusion, and clustering of Ag atoms on a Si(111)7 × 7 surface by scanning tunneling microscopy. The three kinds of structure, i.e., monomers, dimers, and clusters, were observed at a coverage of 0.02 monolayer of Ag atoms. In particular, dimers in unfaulted half unit cells (UHUCs) were observed. We found that monomers in UHUCs jump to the next HUCs with a lifetime of (5.6 ± 0.4) × 103 s. We also measured height oscillation for the cross section analysis of dimers in UHUCs and proposed that Ag dimers move along three stable sites in HUCs in 0.5 ms.

KW - Adsorption

KW - Scanning tunneling microscopy

KW - Silver

KW - Surface diffusion

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JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 3 B

ER -

Diffusion and clustering of Ag atoms on Si(111)7 × 7 surface

Abstract

Keywords

ASJC Scopus subject areas

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