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Structure determination of Ag(111) by low-energy electron diffraction
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UNSPECIFIED (1999) Structure determination of Ag(111) by low-energy electron diffraction. Surface Science, 419 (2-3). pp. 89-96. ISSN 0039-6028.
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Abstract
A quantitative structure determination of the Ag(111) clean surface has been performed using low-energy electron diffraction. Optimisation of the outermost layer spacings and vibrational amplitudes was achieved using two different dynamical scattering computational methods, one using the LEEDFIT code and the second exploiting a Simulated Annealing algorithm implemented on the conventional Van Hove/Tong code. The results obtained show that a bulk-terminated structural model describes the data best (Delta d(12)=0.00 +/- 0.02 Angstrom and Delta d(23) = 0.00 +/- 0.03 Angstrom), and in particular, the analysis excludes a 2.5% contraction of the outermost layer spacing, which was recently reported on the basis of ion-scattering measurements. The LEED result of no contraction is consistent with prior results for the (111) face of several other fee metals. (C) 1999 Elsevier Science B.V. All rights reserved.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
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Journal or Publication Title: | Surface Science | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0039-6028 | ||||
Official Date: | 4 January 1999 | ||||
Dates: |
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Volume: | 419 | ||||
Number: | 2-3 | ||||
Number of Pages: | 8 | ||||
Page Range: | pp. 89-96 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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