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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/30260
Record Status
Checked
Record Id
30260
Title
Structural studies of two- and three-dimensional dysprosium silicides using medium-energy ion scattering
Contributors
D J Spence (York U.)
,
TCQ Noakes (CCLRC Daresbury Lab.)
,
P Bailey (CCLRC Daresbury Lab.)
,
SP Tear (York U.)
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
Funding Information
Related Research Object(s):
Licence Information:
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
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