Atomic geometry of Ge(111) √3 × √3 R30°-Ag determined by low-energy electron diffraction

H. Huang, H. Over, S. Y. Tong, J. Quinn, and F. Jona
Phys. Rev. B 49, 13483 – Published 15 May 1994
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Abstract

We have carried out a quantitative low-energy electron-diffraction intensity analysis of the Ge(111) √3 × √3 R30°-Ag structure. It is found that the Ag atoms arrange according to a honeycomb chained trimer model (HCT) similar to the situation of Si(111) √3 × √3 R30°-Ag. This result shows that the Ge-Ge bond is stronger than the Ag-Ag bond on the surface, thus causing the HCT structure to form.

  • Received 1 December 1993

DOI:https://doi.org/10.1103/PhysRevB.49.13483

©1994 American Physical Society

Authors & Affiliations

H. Huang, H. Over, and S. Y. Tong

  • Department of Physics and Laboratory for Surface Studies, University of Wisconsin(emMilwaukee, P.O. Box 413, Milwaukee, Wisconsin 53201

J. Quinn and F. Jona

  • Department of Materials Science and Engineering, State University of New York, Stony Brook, Stony Brook, New York 11794-2275

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Vol. 49, Iss. 19 — 15 May 1994

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