Abstract
An entire family of nano-scale trenches, ridges, and steps has been observed experimentally on -exposed . Some of these line structures have been observed previously, but their structures have remained a mystery. Theoretical modeling shows that they are all based upon the same stress-relieving 5-7-5 core structure. The strong similarities between line structures on , , , and other V/IV surfaces lead to a much broader conclusion: 5-7-5 line structures are a general form of stress relief for group-V terminated Si and Ge surfaces.
- Received 24 April 2006
DOI:https://doi.org/10.1103/PhysRevB.74.033304
©2006 American Physical Society