Netshisaulu, T.T. and Catlow, C.R.A. and Chadwick, A.V. and Greaves, G.N. and Ngoepe, P.E. (1995) EXAFS studies of disorder in CdF2-PbF2 systems. Radiation Effects and Defects in Solids , 137 (1-4). pp. 1385-1389. ISSN 1042-0150 .
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Abstract
The local environments of Cd and Pb cations in the system Cd1-xPbxF2 (x = 0.6) have been measured by means of EXAFS. A comparative analysis of the Fourier transforms of the experimental data provides evidence of the Pb-F bond length being longer than the Cd-F one. Furthermore, our studies show a loss of structure around the Pb(L(111)) edge with increasing temperature. This suggests that the temperature-induced vacancies on the anion sub-lattice are preferentially located adjacent to Pb ions as previously observed in PbSnF4 mixed-metal fluorides. The results obtained accord well with our computer simulation findings.
| Item Type: | Article |
|---|---|
| Additional information: | Document Type: Proceedings Paper |
| Uncontrolled keywords: | EXAFS; computer simulation; PbF2; CdF2; Cd-0.4 Pb-0.6 F-2; vacancies |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK9001 Nuclear engineering |
| Divisions: | Faculties > Science Technology and Medical Studies > School of Physical Sciences |
| Depositing User: | O.O. Odanye |
| Date Deposited: | 03 Jun 2009 07:21 |
| Last Modified: | 08 May 2012 13:06 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/19408 (The current URI for this page, for reference purposes) |
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