Results of Small-Angle Scattering study of diamonds with various types of point and extended defects and different degrees of annealing are presented. It is shown that thermal annealing and/or mechanical deformation cause formation of nanosized planar and threedimensional defects giving rise to Small-Angle Scattering. The defects are often facetted by crystallographic planes 111, 100, 110, 311, 211 common for diamond. The scattering defects likely consist of clusters of intrinsic and impurity-related defects; boundaries of mechanical twins also contribute to the SAS signal. There is no clear correlation between concentration of nitrogen impurity and intensity of the scattering.
@article{arxiv.1110.6270,
title = {Small-Angle X-ray and neutron scattering from diamond single crystals},
author = {A A Shiryaev and P Boesecke},
journal= {arXiv preprint arXiv:1110.6270},
year = {2012}
}
Comments
6 pages, 5 figures; presented at SANS-YuMO User Meeting 2011, Dubna, Russia