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Persistent URL http://purl.org/net/epubs/work/30260
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Record Id 30260
Title Structural studies of two- and three-dimensional dysprosium silicides using medium-energy ion scattering
Abstract Medium-energy ion scattering has been used to determine the atomic structure of two-dimensional and three-dimensional (3D) dysprosium silicide films on the Si(1 1 1) surface. A quantitative study of the ion yield from the dysprosium has enabled the positions of the atoms in the top three layers of the Si(1 1 1)1×1–Dy to be precisely determined. For the case of the Si(1 1 1)(?3×?3)R30°–Dy 3D silicide surface the experimental blocking curves are in agreement with simulations for the structural model determined by surface X-ray diffraction for the Si(1 1 1)(?3×?3)R30°–Er 3D silicide surface. A contraction of 2.0±0.6% in the c-axis lattice constant compared to bulk dysprosium disilicide is found.
Organisation CCLRC , SND , MEIS
Keywords Physics
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Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Surf Sci 512, no. 1-2 (2002): 61-66. doi:10.1016/S0039-6028(02)01573-X 2002