Local tunneling barrier height imaging of a reconstructed Pt(1 0 0) surface

Asawin Sinsarp; Yoichi Yamada; Masahiro Sasaki; Shigehiko Yamamoto

doi:10.1016/j.apsusc.2004.06.091

Local tunneling barrier height imaging of a reconstructed Pt(1 0 0) surface

Asawin Sinsarp
, Yoichi Yamada
, Masahiro Sasaki
, Shigehiko Yamamoto

University of Tsukuba

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

5 Citations (Scopus)

Abstract

The effect of surface reconstruction on work function of a quasi-hexagonal reconstructed Pt(1 0 0) surface has been studied by local tunneling barrier height (LBH) imaging with scanning tunneling microscopy (STM). Relatively low LBH is observed at the areas providing the strongly-corrugated geometric structure, where the bright contrast is observed in the STM image. This reduction in the local work function has been interpreted in terms of the dipoles induced by the Smoluchowski smoothing effect. This suggests the reason why the macroscopic work function of the reconstructed Pt(1 0 0) surface is lower than that of the Pt(1 1 1) surface, despite the similar hexagonal surface structures.

Original language	English
Pages (from-to)	583-588
Number of pages	6
Journal	Applied Surface Science
Volume	237
Issue number	1-4
DOIs	https://doi.org/10.1016/j.apsusc.2004.06.091
Publication status	Published - 15 Oct 2004
Externally published	Yes

Keywords

Local tunneling barrier height
Local work function
Platinum; Pt(1 0 0)
Reconstructed surface
Scanning tunneling microscopy

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10.1016/j.apsusc.2004.06.091

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title = "Local tunneling barrier height imaging of a reconstructed Pt(1 0 0) surface",

abstract = "The effect of surface reconstruction on work function of a quasi-hexagonal reconstructed Pt(1 0 0) surface has been studied by local tunneling barrier height (LBH) imaging with scanning tunneling microscopy (STM). Relatively low LBH is observed at the areas providing the strongly-corrugated geometric structure, where the bright contrast is observed in the STM image. This reduction in the local work function has been interpreted in terms of the dipoles induced by the Smoluchowski smoothing effect. This suggests the reason why the macroscopic work function of the reconstructed Pt(1 0 0) surface is lower than that of the Pt(1 1 1) surface, despite the similar hexagonal surface structures.",

keywords = "Local tunneling barrier height, Local work function, Platinum; Pt(1 0 0), Reconstructed surface, Scanning tunneling microscopy",

author = "Asawin Sinsarp and Yoichi Yamada and Masahiro Sasaki and Shigehiko Yamamoto",

year = "2004",

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doi = "10.1016/j.apsusc.2004.06.091",

language = "English",

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journal = "Applied Surface Science",

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T1 - Local tunneling barrier height imaging of a reconstructed Pt(1 0 0) surface

AU - Sinsarp, Asawin

AU - Yamada, Yoichi

AU - Sasaki, Masahiro

AU - Yamamoto, Shigehiko

PY - 2004/10/15

Y1 - 2004/10/15

N2 - The effect of surface reconstruction on work function of a quasi-hexagonal reconstructed Pt(1 0 0) surface has been studied by local tunneling barrier height (LBH) imaging with scanning tunneling microscopy (STM). Relatively low LBH is observed at the areas providing the strongly-corrugated geometric structure, where the bright contrast is observed in the STM image. This reduction in the local work function has been interpreted in terms of the dipoles induced by the Smoluchowski smoothing effect. This suggests the reason why the macroscopic work function of the reconstructed Pt(1 0 0) surface is lower than that of the Pt(1 1 1) surface, despite the similar hexagonal surface structures.

AB - The effect of surface reconstruction on work function of a quasi-hexagonal reconstructed Pt(1 0 0) surface has been studied by local tunneling barrier height (LBH) imaging with scanning tunneling microscopy (STM). Relatively low LBH is observed at the areas providing the strongly-corrugated geometric structure, where the bright contrast is observed in the STM image. This reduction in the local work function has been interpreted in terms of the dipoles induced by the Smoluchowski smoothing effect. This suggests the reason why the macroscopic work function of the reconstructed Pt(1 0 0) surface is lower than that of the Pt(1 1 1) surface, despite the similar hexagonal surface structures.

KW - Local tunneling barrier height

KW - Local work function

KW - Platinum; Pt(1 0 0)

KW - Reconstructed surface

KW - Scanning tunneling microscopy

UR - https://www.scopus.com/pages/publications/4644285579

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DO - 10.1016/j.apsusc.2004.06.091

M3 - Article

AN - SCOPUS:4644285579

SN - 0169-4332

VL - 237

SP - 583

EP - 588

JO - Applied Surface Science

JF - Applied Surface Science

IS - 1-4

ER -

Local tunneling barrier height imaging of a reconstructed Pt(1 0 0) surface

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Keywords

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