Abstract
Experimental evidence for surface segregation of Pt at (1 1 1) surfaces of ternary (Pt, Ni)3Al alloys is presented, based upon Auger electron spectroscopy, low energy ion scattering, and angle-resolved X-ray photoelectron spectroscopy. Density functional calculations in the dilute limit confirm that Pt segregation is energetically favored.
Original language | English |
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Pages (from-to) | 376-380 |
Number of pages | 5 |
Journal | Surface Science |
Volume | 601 |
Issue number | 2 |
DOIs | |
State | Published - Jan 15 2007 |
Externally published | Yes |
Funding
This work was supported by the Director, Ames Laboratory, US Department of Energy, Contract No. W-405-Eng-82.
Funders | Funder number |
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U.S. Department of Energy | W-405-Eng-82 |
Ames Laboratory |
Keywords
- Auger electron spectroscopy
- Density functional calculations
- Low energy electron diffraction (LEED)
- Low energy ion scattering (LEIS)
- Nickel aluminide
- Platinum
- Surface segregation
- X-ray photoelectron spectroscopy