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Optical properties of vacancy related defects in diamond

✍ Scribed by Hounsome, L. S. ;Jones, R. ;Martineau, P. M. ;Shaw, M. J. ;Briddon, P. R. ;Öberg, S. ;Blumenau, A. T. ;Fujita, N.

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
674 KB
Volume
202
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

〈110〉 vacancy chains, multi‐vacancy clusters and vacancy discs have been modeled using density functional theory within the AIMPRO and DFTB codes. While a connection can be established between the results on vacancy chains and previous EPR experiments, no connection can be made between the point defects and the optical properties of natural type IIa brown diamonds. However, a vacancy disc consisting of a {111} double plane of vacancies is stable and possesses an absorption spectrum similar to that found in brown diamonds. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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