Toggle Main Menu Toggle Search

Open Access padlockePrints

Metastable Frenkel pairs and the W11-W14 electron paramagnetic resonance centers in diamond

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


Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


Diamond is a material that shows great promise for particle detection applications. However, under irradiation with energetic particles, many thermally stable defects are created, made up of lattice vacancies, self-interstitials, and complexes with impurities. Relatively distant Frenkel (vacancy-self-interstitial) pairs have long been used to explain optical and magnetic spectra in irradiated material. However, in diamond we show, using first-principles methods, that the ability of carbon to form s p2 -, s p3 -, and π -bonding configurations leads to particularly strong reconstructions between vacancy-self-interstitial pairs within a few atomic spacings of each other. The resultant complexes are anticipated to be optically and paramagnetically active, and we propose correlation of negatively charged Frenkel pairs with the W11-W14 paramagnetic centers, where substitutional nitrogen donors act as source of electrons and are not an intimate component part of the paramagnetic defects. © 2007 The American Physical Society.

Publication metadata

Author(s): Goss JP, Rayson MJ, Briddon PR, Baker JM

Publication type: Article

Publication status: Published

Journal: Physical Review B

Year: 2007

Volume: 76

Issue: 4

ISSN (print): 1098-0121

ISSN (electronic): 1550-235X

Publisher: American Physical Society


DOI: 10.1103/PhysRevB.76.045203


Altmetrics provided by Altmetric