Correlated piecewise diffusion of a Ge ad-dimer on the Si(001) surface
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Ames Laboratory-U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
We have performed extensive first-principles calculations to study the binding and diffusion of a Ge ad-dimer on the Si(001) surface. The diffusion of a Ge ad-dimer along the lowest-energy-barrier pathway is found to be piecewise but with strong correlation, and its energy barrier is 0.77 eV. Such a correlated piecewise diffusion pathway is also found to be favored by a Si ad-dimer on Si(001), with an energy barrier of 1.02 eV in excellent agreement with experimental measurements. (c) 2000 The American Physical Society.
- OSTI ID:
- 20217703
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 12 Vol. 62; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
Similar Records
Unique Rock-n-Roll Dynamic Appearance of a Ge-Si Ad-Dimer on Si(001)
Unique Dynamic Appearance of a Ge-Si Ad-dimer on Si(001)
Dimer-flipping-assisted diffusion on a Si(001) surface
Journal Article
·
Mon Jul 24 00:00:00 EDT 2000
· Science
·
OSTI ID:759997
Unique Dynamic Appearance of a Ge-Si Ad-dimer on Si(001)
Journal Article
·
Sun Dec 24 23:00:00 EST 2000
· Physical Review Letters
·
OSTI ID:40205940
Dimer-flipping-assisted diffusion on a Si(001) surface
Journal Article
·
Sun Dec 17 23:00:00 EST 2000
· Applied Physics Letters
·
OSTI ID:40205334