Abstract
The binding sites and diffusion pathways of Si adatoms on a c(4X2) reconstructed Si(001) surface are investigated by a tight-binding method with an environment-dependent silicon potential in conjunction with ab initio calculations using the Car-Parrinello method. A new diffusion pathway along the trough edge driven by dimer flipping is found with a barrier of 0.74 eV, comparable to that of 0.68 eV along the top of the dimer rows.
Original language | English |
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Pages (from-to) | 4184-4186 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 77 |
Issue number | 25 |
DOIs | |
Publication status | Published - 2000 Dec 18 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)