Small-Angle X-ray and neutron scattering from diamond single crystals

Details Small-Angle X-ray and neutron scattering from diamond single crystals Small-Angle X-ray and neutron scattering from diamond single crystals

2011-10-28

arxiv.org/abs/1110.6270v1

Physics

Condensed Matter

Materials Science

6 pages, 5 figures; presented at SANS-YuMO User Meeting 2011, Dubna, Russia

Scientific paper

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.

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