Abstract
We have studied the formation of cuspidal pits during the growth of strained SixGe1-x alloy layers at relatively high supersaturations. The pit formation is directly linked to strain in the alloy layer, and we propose a heterogeneous formation mechanism in which the pits develop from stress-driven surface diffusion associated with a localized initial perturbation of the buffer layer surface.
| Original language | English |
|---|---|
| Pages (from-to) | 34 |
| Number of pages | 1 |
| Journal | Applied Physics Letters |
| DOIs | |
| State | Published - 1995 |