Diffusion Kinetics in the Pd/Cu(001) Surface Alloy
Journal Article
·
· Physical Review Letters
We use atom-tracking scanning tunneling microscopy to study the diffusion of Pd in the Pd/Cu(001) surface alloy as a function of temperature. By following the motion of individual Pd atoms incorporated in the surface, we show that Pd diffuses by a vacancy-exchange mechanism. We measure an activation energy for the diffusion of incorporated Pd atoms of 0.88eV, which is in good agreement with our ab initio calculated energy of 0.94eV.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40205796
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 86; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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