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Structure determination of the Cu(100)c(2x2)-Mn and Cu(100)c(2x2)-Au surface alloy phases by medium-energy ion scattering
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UNSPECIFIED (1999) Structure determination of the Cu(100)c(2x2)-Mn and Cu(100)c(2x2)-Au surface alloy phases by medium-energy ion scattering. JOURNAL OF PHYSICS-CONDENSED MATTER, 11 (8). pp. 1889-1901.
Research output not available from this repository, contact author.Abstract
The substitutional surface alloy phases Cu(100)c(2 x 2)-Mn and Cu(100)c(2 x 2)Au have been investigated by medium-energy ion scattering (MEIS) using 100 keV H+ ions. Blocking patterns in the scattered ion yield have been measured for [(111) over bar] [<(12)over bar0>] and [<(13)over bar0>] incidence geometries. Simulations of these blocking patterns have been performed for a range of trial structures and the optimum values of the structural parameters obtained are compared with those available from earlier low-energy electron diffraction (LEED) and photoelectron diffraction (PhD) investigations. The MEIS results confirm the presence of rumpling in the outermost alloy layer, with corrugation amplitudes of 0.37 +/- 0.06 Angstrom and 0.06 +/- 0.04 Angstrom for the CuMn and CuAu surface alloys respectively. This result supports the previously reported anomalously large corrugation for Cu(100)c(2 x 2)-Mn which has been attributed to the local high-spin state of the Mn atoms.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Journal or Publication Title: | JOURNAL OF PHYSICS-CONDENSED MATTER | ||||
| Publisher: | IOP PUBLISHING LTD | ||||
| ISSN: | 0953-8984 | ||||
| Official Date: | 1 March 1999 | ||||
| Dates: |
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| Volume: | 11 | ||||
| Number: | 8 | ||||
| Number of Pages: | 13 | ||||
| Page Range: | pp. 1889-1901 | ||||
| Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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