New infrared absorption centres in electron irradiated and annealed type Ia diamonds

Authors
Kiflawi, I Davies, G Fisher, D Kanda, H
Citation
I. Kiflawi et al., New infrared absorption centres in electron irradiated and annealed type Ia diamonds, DIAM RELAT, 8(8-9), 1999, pp. 1576-1580
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
DIAMOND AND RELATED MATERIALS
ISSN journal
09259635 → ACNP
Volume
8
Issue
8-9
Year of publication
1999
Pages
1576 - 1580
Database
ISI
SICI code
0925-9635(199908)8:8-9<1576:NIACIE>2.0.ZU;2-Y
Abstract
New absorption centres having zero phonon lines at 2678 (332 meV), 2913.6 ( 361 meV), 4392.9 (544 meV) and 4442.2 cm(-1) (550 meV) have been produced i n heavily electron-irradiated and annealed type Ia diamonds. Their temperat ure dependence and annealing behaviour have been investigated along with th e effect of the radiation dose and isotopic shifts caused by the substituti on of N-15 and C-13 for N-14 and C-12, respectively. The results are consis tent with the centres being caused by electronic transitions. (C) 1999 Publ ished by Elsevier Science S.A. All rights reserved.