On the role of step-flow advection during electromigration-induced step bunching

Details On the role of step-flow advection during electromigration-induced step bunching On the role of step-flow advection during electromigration-induced step bunching

2007-03-28

arxiv.org/abs/cond-mat/0703749v1

Physics

Condensed Matter

Materials Science

4 pages

Scientific paper

10.1103/PhysRevB.75.241304

We propose a one-dimensional model based on the Burton-Cabrera-Frank equations to describe the electromigration-induced step bunching instability on vicinal surfaces. The step drift resulting from atomic evaporation and/or deposition is explicitly included in our model. A linear stability analysis reveals several stability inversions as the evaporation rate varies, while a deposition flux is shown to have a stabilizing effect.

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