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 .
|The full text of this publication is not available from this repository. (Contact us about this Publication)|
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.
|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)|
- Depositors only (login required):