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Platelets and the <110>a0/4 {001} stacking fault in diamond

Lookup NU author(s): Dr Jon Goss, Professor Patrick Briddon

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Abstract

Electron microscopy reveals the presence of {001} platelets in annealed, nitrogen containing diamond. These extended planar defects give rise to a large displacement of the surrounding material, are correlated with luminescence and optical absorption, and are characterized by the B-' vibrational band above the one-phonon maximum. A recent proposal for an atomic structure for these defects is made up from a < 110 > a(0)/4 shear in the {001} plane, resulting in C-C double bonds aligned along < 001 >. We show here that not only is this structure inconsistent with experimental observations, but it is unstable and reconstructs to form a largely passive stacking fault defect which also has properties inconsistent with the platelet.


Publication metadata

Author(s): Goss JP, Briddon PR, Jones R, Heggie MI

Publication type: Article

Publication status: Published

Journal: Physical Review B

Year: 2006

Volume: 73

Issue: 11

ISSN (print): 1098-0121

ISSN (electronic): 1550-235X

Publisher: American Physical Society

URL: http://dx.doi.org/10.1103/PhysRevB.73.115204

DOI: 10.1103/PhysRevB.73.115204


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