Radiation-produced electron and hole centres in oxygen-containing BaFBr. II. An ENDOR study of OF-
- 25 November 1991
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 3 (47) , 9339-9349
- https://doi.org/10.1088/0953-8984/3/47/007
Abstract
For pt.I see ibid., vol.3, p.9327 (1991). Oxygen contamination introduces hole-trapping centres into barium fluorohalides. In the preceding paper, an O- centre was reported as the product of the reaction between out-of-plane Br2- VK centres and oxide impurities. This paper describes an ENDOR study of this centre which identifies it as OF-, an oxygen ion substituted at a fluoride site. No evidence has been found for the presence of a neighbouring defect (anion vacancy or interstitial cation) remaining from its charge-compensating role for the proposed precursor OF2-.Keywords
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