Автор |
Chadwick, A. V. |
Автор |
Morrison, G. |
Автор |
Rafiuddin, R. |
Дата выпуска |
1995 |
dc.description |
AbstractAtomistic computer modelling and Extended X-ray Absorption Fine Structure (EXAFS) measurements were used in a study of the mode of solution of Sr<sup>2+</sup> ions in La<sub>2</sub>O<sub>3</sub>. The results are in agreement with previous modeling studies which show that the most favourable mode of solution is cation substitution with anion vacancy charge compensation. The energy of solution was found to be 1.3 eV. The Sr K-edge EXAFS results for 10 and 20 mole percent Sr<sup>2+</sup> doped La<sub>2</sub>O<sub>3</sub> were consistent with cation substitution. For both doped samples the EXAFS indicate the presence of a defect cluster containing 2Sr<sub>La</sub> ions adjacent to a V<sub>o</sub>. |
Формат |
application.pdf |
Издатель |
Taylor & Francis Group |
Копирайт |
Copyright Taylor and Francis Group, LLC |
Тема |
Lanthanum oxide |
Тема |
computer modelling |
Тема |
EXAFS |
Тема |
dopant clusters |
Название |
A combined computer simulation and EXAFS study of dopant clustering in lanthanum oxide |
Тип |
research-article |
DOI |
10.1080/10420159508227190 |
Electronic ISSN |
1029-4953 |
Print ISSN |
1042-0150 |
Журнал |
Radiation Effects and Defects in Solids |
Том |
134 |
Первая страница |
91 |
Последняя страница |
94 |
Аффилиация |
Chadwick, A. V.; Chemical Laboratory, University of Kent |
Аффилиация |
Morrison, G.; Chemical Laboratory, University of Kent |
Аффилиация |
Rafiuddin, R.; Chemical Laboratory, University of Kent |
Выпуск |
1-4 |
Библиографическая ссылка |
Milne, S. J., Brook, R. J. and Zhen, Y. S. 1989. Br. Ceram. Proc., 41: 243 |
Библиографическая ссылка |
Kalenik, Z. and Wolf, E. E. 1991. Catal. Lett., 9: 441 Catalysis, 13, 255 (1992) |
Библиографическая ссылка |
Ilett, D. J. and Islam, M. S. 1993. J. Chem. Soc., Faraday Trans., 89: 3833 |
Библиографическая ссылка |
Aldebert, P. and Traverse, J. P. 1979. Mat. Res. Bull., 14: 303 |
Библиографическая ссылка |
Bush, T. S., Gale, J. D., Catlow, C. R. A. and Battle, P. D. 1994. J. Mater. Chem., 4: 831 |
Библиографическая ссылка |
Chadwick, A. V. 1993. Solid State Ionics, 63–65: 721 |
Библиографическая ссылка |
Leslie, M. 1982. SERC Darebury Laboratory Report, No. DL/SCI/TM31T |
Библиографическая ссылка |
Binsted, N., Gurman, S. J., Campbell, J. W. and Stephenson, P. 1992. SERC Daresbury EXAFS Programs, EXCALIB, EXBACK and EXCURV92, |