Reduced density of missing-dimer vacancies on tungsten-contaminated Si(100)-(2 × n) surface by hydrogen termination

Shinobu Matsuura; Taro Hitosugi; Seiji Heike; Ayumu Kida; Yuji Suwa; Toshiyuki Onogi; Satoshi Watanabe; Koichi Kitazawa; Tomihiro Hashizume

Reduced density of missing-dimer vacancies on tungsten-contaminated Si(100)-(2 × n) surface by hydrogen termination

Shinobu Matsuura, Taro Hitosugi, Seiji Heike, Ayumu Kida, Yuji Suwa, Toshiyuki Onogi, Satoshi Watanabe, Koichi Kitazawa, Tomihiro Hashizume

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

11 Citations (Scopus)

Abstract

A Si(100) surface with missing-dimer vacancies forming (2 × n) phase was prepared by tungsten deposition and the morphological change was observed by scanning tunneling microscopy when the surface was terminated by hydrogen. The density of dimer vacancies was significantly reduced by the hydrogen termination, suggesting that the density of subsurface W atoms decreased. We discuss the mechanism of this morphological change based on the traditional theory of chemisorption-induced surface segregation and on the energetic instability of W atoms buried in the subsurface of the hydrogen-terminated Si surface.

Original language	English
Pages (from-to)	4518-4520
Number of pages	3
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	39
Issue number	7 B
Publication status	Published - 2000 Dec 1

Keywords

(2 × n) surface reconstruction
Hydrogen-terminated Si(100) surface
Missing-dimer vacancy
Scanning tunneling microscopy

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Reduced density of missing-dimer vacancies on tungsten-contaminated Si(100)-(2 × n) surface by hydrogen termination. / Matsuura, Shinobu; Hitosugi, Taro; Heike, Seiji; Kida, Ayumu; Suwa, Yuji; Onogi, Toshiyuki; Watanabe, Satoshi; Kitazawa, Koichi; Hashizume, Tomihiro.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 39, No. 7 B, 01.12.2000, p. 4518-4520.

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

Matsuura, Shinobu ; Hitosugi, Taro ; Heike, Seiji ; Kida, Ayumu ; Suwa, Yuji ; Onogi, Toshiyuki ; Watanabe, Satoshi ; Kitazawa, Koichi ; Hashizume, Tomihiro. / Reduced density of missing-dimer vacancies on tungsten-contaminated Si(100)-(2 × n) surface by hydrogen termination. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2000 ; Vol. 39, No. 7 B. pp. 4518-4520.

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abstract = "A Si(100) surface with missing-dimer vacancies forming (2 × n) phase was prepared by tungsten deposition and the morphological change was observed by scanning tunneling microscopy when the surface was terminated by hydrogen. The density of dimer vacancies was significantly reduced by the hydrogen termination, suggesting that the density of subsurface W atoms decreased. We discuss the mechanism of this morphological change based on the traditional theory of chemisorption-induced surface segregation and on the energetic instability of W atoms buried in the subsurface of the hydrogen-terminated Si surface.",

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AU - Matsuura, Shinobu

AU - Hitosugi, Taro

AU - Heike, Seiji

AU - Kida, Ayumu

AU - Suwa, Yuji

AU - Onogi, Toshiyuki

AU - Watanabe, Satoshi

AU - Kitazawa, Koichi

AU - Hashizume, Tomihiro

PY - 2000/12/1

Y1 - 2000/12/1

N2 - A Si(100) surface with missing-dimer vacancies forming (2 × n) phase was prepared by tungsten deposition and the morphological change was observed by scanning tunneling microscopy when the surface was terminated by hydrogen. The density of dimer vacancies was significantly reduced by the hydrogen termination, suggesting that the density of subsurface W atoms decreased. We discuss the mechanism of this morphological change based on the traditional theory of chemisorption-induced surface segregation and on the energetic instability of W atoms buried in the subsurface of the hydrogen-terminated Si surface.

AB - A Si(100) surface with missing-dimer vacancies forming (2 × n) phase was prepared by tungsten deposition and the morphological change was observed by scanning tunneling microscopy when the surface was terminated by hydrogen. The density of dimer vacancies was significantly reduced by the hydrogen termination, suggesting that the density of subsurface W atoms decreased. We discuss the mechanism of this morphological change based on the traditional theory of chemisorption-induced surface segregation and on the energetic instability of W atoms buried in the subsurface of the hydrogen-terminated Si surface.

KW - (2 × n) surface reconstruction

KW - Hydrogen-terminated Si(100) surface

KW - Missing-dimer vacancy

KW - Scanning tunneling microscopy

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

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Reduced density of missing-dimer vacancies on tungsten-contaminated Si(100)-(2 × n) surface by hydrogen termination

Abstract

Keywords

ASJC Scopus subject areas

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