Submonolayer growth with decorated island edges

Details Submonolayer growth with decorated island edges Submonolayer growth with decorated island edges

1999-08-02

arxiv.org/abs/cond-mat/9908026v2

Physics

Condensed Matter

Materials Science

7 pages, 2 postscript figures

Scientific paper

10.1016/S0039-6028(00)00251-X

We study the dynamics of island nucleation in the presence of adsorbates using kinetic Monte Carlo simulations of a two-species growth model. Adatoms (A-atoms) and impurities (B-atoms) are codeposited, diffuse and aggregate subject to attractive AA- and AB-interactions. Activated exchange of adatoms with impurities is identified as the key process to maintain decoration of island edges by impurities during growth. While the presence of impurities strongly increases the island density, a change in the scaling of island density with flux, predicted by a rate equation theory for attachment-limited growth [D. Kandel, Phys. Rev. Lett. 78, 499 (1997)], is not observed. We argue that, within the present model, even completely covered island edges do not provide efficient barriers to attachment.

Affiliated with

Also associated with

No associations

Rating

Submonolayer growth with decorated island edges does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Submonolayer growth with decorated island edges, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Submonolayer growth with decorated island edges will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-37461