Study of the Si(111)√3√3-Sb structure by X-ray diffraction

The structure of the Si(111)√3×√3-Sb surface was investigated by the X-ray diffraction method, which is effective in determining the atomic arrangement in both lateral and normal directions. The result of the measurements on the integral and fractional order rods indicates a trimer arrangement of Sb...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 1992-04, Vol.31 (4A), p.L426-L428
Main Authors: NAKATANI, S, SAITO, A, KUWAHARA, Y, TAKAHASHI, T, AONO, M, KIKUTA, S
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Physics
Solid surfaces and solid-solid interfaces
Surface structure and topography
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
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Summary:The structure of the Si(111)√3×√3-Sb surface was investigated by the X-ray diffraction method, which is effective in determining the atomic arrangement in both lateral and normal directions. The result of the measurements on the integral and fractional order rods indicates a trimer arrangement of Sb atoms. From the data analysis using the least squares method, it is concluded that the “milk stool” model accurately estimates the structure and other models can be disregarded. Bond lengths of Sb-Sb and Sb-Si are calculated at 2.82 Å and 2.74 Å. These values agree well with the sums of the atomic radii.
ISSN:0021-4922
1347-4065
DOI:10.1143/jjap.31.l426