Atomic structure of two-dimensional Ag layer grown on Si(001)-(2 × 1) at room temperature

N. G. Park, Y. W. Kim, W. S. Cho, J. Y. Kim, D. S. Choi, KwangHo Jeong, K. H. Chae, C. N. Whang

Research output: Contribution to journalArticle

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Abstract

Atomic structures of the two-dimensional Ag layer grown on Si(001)-(2 × 1) at room temperature have been studied by coaxial impact collision ion scattering spectroscopy. After several monolayers of Ag had been deposited on the Si(001)-(2 × 1) surface, the two-dimensional Ag layer was found to consist of Ag dimers. The bond length of the Ag dimer was 2.89 ± 0.05 Å. The heights of the Ag dimers from the second Si layer were 2.45 and 3.02 A. The Ag dimers were located in the hollow sites between two dimers along the Si row, and in the middle of four neighbouring Si dimers with the orientation of the Ag dimer row being perpendicular to that of the Si dimer. Thus, the Si substrate under the two-dimensional Ag layer still retained its initial dimer structure. Therefore, it was concluded that the two-dimensional Ag layer on Si(001)-(2 × 1) had a Ag(2 × 2) structure with a saturation coverage of 1 ML.

Original languageEnglish
JournalSurface Science
Volume414
Issue number1-2
DOIs
Publication statusPublished - 1998 Sep 11

Fingerprint

atomic structure
Dimers
dimers
room temperature
Temperature
Bond length
ion scattering
hollow
Monolayers
Spectroscopy
Scattering
Ions
saturation
collisions
Substrates
spectroscopy

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Park, N. G. ; Kim, Y. W. ; Cho, W. S. ; Kim, J. Y. ; Choi, D. S. ; Jeong, KwangHo ; Chae, K. H. ; Whang, C. N. / Atomic structure of two-dimensional Ag layer grown on Si(001)-(2 × 1) at room temperature. In: Surface Science. 1998 ; Vol. 414, No. 1-2.
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abstract = "Atomic structures of the two-dimensional Ag layer grown on Si(001)-(2 × 1) at room temperature have been studied by coaxial impact collision ion scattering spectroscopy. After several monolayers of Ag had been deposited on the Si(001)-(2 × 1) surface, the two-dimensional Ag layer was found to consist of Ag dimers. The bond length of the Ag dimer was 2.89 ± 0.05 {\AA}. The heights of the Ag dimers from the second Si layer were 2.45 and 3.02 A. The Ag dimers were located in the hollow sites between two dimers along the Si row, and in the middle of four neighbouring Si dimers with the orientation of the Ag dimer row being perpendicular to that of the Si dimer. Thus, the Si substrate under the two-dimensional Ag layer still retained its initial dimer structure. Therefore, it was concluded that the two-dimensional Ag layer on Si(001)-(2 × 1) had a Ag(2 × 2) structure with a saturation coverage of 1 ML.",
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Atomic structure of two-dimensional Ag layer grown on Si(001)-(2 × 1) at room temperature. / Park, N. G.; Kim, Y. W.; Cho, W. S.; Kim, J. Y.; Choi, D. S.; Jeong, KwangHo; Chae, K. H.; Whang, C. N.

In: Surface Science, Vol. 414, No. 1-2, 11.09.1998.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Atomic structure of two-dimensional Ag layer grown on Si(001)-(2 × 1) at room temperature

AU - Park, N. G.

AU - Kim, Y. W.

AU - Cho, W. S.

AU - Kim, J. Y.

AU - Choi, D. S.

AU - Jeong, KwangHo

AU - Chae, K. H.

AU - Whang, C. N.

PY - 1998/9/11

Y1 - 1998/9/11

N2 - Atomic structures of the two-dimensional Ag layer grown on Si(001)-(2 × 1) at room temperature have been studied by coaxial impact collision ion scattering spectroscopy. After several monolayers of Ag had been deposited on the Si(001)-(2 × 1) surface, the two-dimensional Ag layer was found to consist of Ag dimers. The bond length of the Ag dimer was 2.89 ± 0.05 Å. The heights of the Ag dimers from the second Si layer were 2.45 and 3.02 A. The Ag dimers were located in the hollow sites between two dimers along the Si row, and in the middle of four neighbouring Si dimers with the orientation of the Ag dimer row being perpendicular to that of the Si dimer. Thus, the Si substrate under the two-dimensional Ag layer still retained its initial dimer structure. Therefore, it was concluded that the two-dimensional Ag layer on Si(001)-(2 × 1) had a Ag(2 × 2) structure with a saturation coverage of 1 ML.

AB - Atomic structures of the two-dimensional Ag layer grown on Si(001)-(2 × 1) at room temperature have been studied by coaxial impact collision ion scattering spectroscopy. After several monolayers of Ag had been deposited on the Si(001)-(2 × 1) surface, the two-dimensional Ag layer was found to consist of Ag dimers. The bond length of the Ag dimer was 2.89 ± 0.05 Å. The heights of the Ag dimers from the second Si layer were 2.45 and 3.02 A. The Ag dimers were located in the hollow sites between two dimers along the Si row, and in the middle of four neighbouring Si dimers with the orientation of the Ag dimer row being perpendicular to that of the Si dimer. Thus, the Si substrate under the two-dimensional Ag layer still retained its initial dimer structure. Therefore, it was concluded that the two-dimensional Ag layer on Si(001)-(2 × 1) had a Ag(2 × 2) structure with a saturation coverage of 1 ML.

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