| Автор | S Schweizer |
| Автор | J-M Spaeth |
| Автор | T J Bastow |
| Дата выпуска | 1998-10-12 |
| dc.description | After x-irradiation of nonstoichiometric , besides the centre a new intrinsic hole centre was found by electron paramagnetic resonance (EPR). The powder EPR line of this new centre can be simulated assuming an molecule on a fluoride site. The new hole centre is stable at room temperature and is the anti-centre of the centre in the F centre generation process. Magic angle spinning nuclear magnetic resonance (MAS-NMR) experiments on nonstoichiometric show not only resonances of on regular lattice sites, but also resonances which are due to on bromine sites (`fluorine antisites'). There are about 10% fluorine antisites in the nonstoichiometric powder which corresponds to the excess fluorine determined by chemical analysis. The generation of electron trap-hole trap pairs upon x-irradiation originates at the fluorine antisites. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Generation of F centres and hole centres in the nonstoichiometric x-ray storage phosphor BaFBr |
| Тип | paper |
| DOI | 10.1088/0953-8984/10/40/014 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 10 |
| Первая страница | 9111 |
| Последняя страница | 9122 |
| Выпуск | 40 |
