Composition and structure of Cu3Pt(001) : A (1 × 1) Cu termination with c(2 × 2) underlayer ordering
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 23-31 |
| Journal / Publication | Surface Science |
| Volume | 406 |
| Issue number | 1-3 |
| Publication status | Published - 31 May 1998 |
| Externally published | Yes |
Link(s)
Abstract
The composition and structure of the (001) oriented surface of the ordered alloy Cu3Pt were investigated by low-energy Li+ and He+ ion scattering, and low-energy electron diffraction. The clean and well-annealed surface exhibited a c(2 × 2) LEED pattern. We present evidence that the c(2 × 2) structure corresponds to an ordered c(2 × 2) Cu-Pt second layer below a (1 × 1) Cu termination. Using Li+ ions, from analysis of the Cu and Pt critical shadowing edges, the first interlayer spacing was determined to be contracted by about 3%. The results are discussed on the basis of surface segregation and ordering effects. © 1998 Elsevier Science B.V. All rights reserved.
Research Area(s)
- Alloys, Copper, Low energy ion scattering, Low index single crystal surfaces, Platinum, Surface segregation, Surface structure, morphology, roughness, and topography
Citation Format(s)
Composition and structure of Cu3Pt(001): A (1 × 1) Cu termination with c(2 × 2) underlayer ordering. / Shen, Y. G.; O'Connor, D. J.; Wandelt, K.
In: Surface Science, Vol. 406, No. 1-3, 31.05.1998, p. 23-31.
In: Surface Science, Vol. 406, No. 1-3, 31.05.1998, p. 23-31.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
