Spiral surface growth without desorption

Details Spiral surface growth without desorption Spiral surface growth without desorption

1998-09-25

arxiv.org/abs/cond-mat/9809358v2

Phys. Rev. Lett. 81, 4444 (1998)

Physics

Condensed Matter

Materials Science

9 pages, 3 figures, RevTex

Scientific paper

10.1103/PhysRevLett.81.4444

Spiral surface growth is well understood in the limit where the step motion is controlled by the local supersaturation of adatoms near the spiral ridge. In epitaxial thin-film growth, however, spirals can form in a step-flow regime where desorption of adatoms is negligible and the ridge dynamics is governed by the non-local diffusion field of adatoms on the whole surface. We investigate this limit numerically using a phase-field formulation of the Burton-Cabrera-Frank model, as well as analytically. Quantitative predictions, which differ strikingly from those of the local limit, are made for the selected step spacing as a function of the deposition flux, as well as for the dependence of the relaxation time to steady-state growth on the screw dislocation density.

Affiliated with

Also associated with

No associations

Rating

Spiral surface growth without desorption 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 Spiral surface growth without desorption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spiral surface growth without desorption will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-486481