Extended defects in diamond: The interstitial platelet

J. P. Goss, B. J. Coomer, R. Jones, C. J. Fall, P. R. Briddon, and S. Öberg
Phys. Rev. B 67, 165208 – Published 24 April 2003
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Abstract

The structure and properties of the {001} planar platelet in diamond are investigated using ab initio theory. We find that a carbonaceous model, based on a layer of self-interstitials, satisfies the requirements of transmission electron microscopy, infrared absorption data, and energetic considerations. The energetics of self-interstitial production during nitrogen aggregation are considered. It is found that the growth mechanism of the platelet involves a thermally activated release of vacancies from platelets. The role of vacant sites and platelet nitrogen are also investigated and it is shown that these defects embedded within the platelet could account for the observed optical activity.

  • Received 21 June 2002

DOI:https://doi.org/10.1103/PhysRevB.67.165208

©2003 American Physical Society

Authors & Affiliations

J. P. Goss, B. J. Coomer, R. Jones, and C. J. Fall

  • School of Physics, The University of Exeter, Exeter EX4 4QL, United Kingdom

P. R. Briddon

  • Department of Physics, The University of Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, United Kingdom

S. Öberg

  • Department of Mathematics, Luleå University of Technology, Luleå S-97187, Sweden

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Vol. 67, Iss. 16 — 15 April 2003

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