Thin film growth of Pt on Cu(111) : A LEIS study
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
|Journal / Publication||Surface Science|
|Publication status||Published - 20 Jun 1996|
|Link to Scopus||https://www.scopus.com/record/display.uri?eid=2-s2.0-3242809408&origin=recordpage|
Low energy Li+ ion scattering with a combination of LEED has been used to study thin Pt films on Cu(111) deposited at room temperature (≤50°C) and subsequently heated. At room temperature, Pt grew epitaxially on Cu(111) in the regular fee stacking sequence for a thickness of at least five monolayers. For the annealing temperature of ∼300°C, Pt-Cu intermixing was observed, forming a metastable Cu3Pt surface alloy. Analysis of the surface layers was made by analysing the incident angle dependence associated with shadowing effects and comparison to the results obtained from a bulk Cu3Pt(111) single crystal, revealing that the alloy is Cu3Pt(111) phase over at least three atomic layers. Neither CuPt(111) nor CuPt3(111) surface phase has been evidenced in this study.
- Alloys, Copper, Growth, Low energy ion scattering (LEIS), Metallic films, Platinum