On the substitution site of Cr and Fe in LiNbO3: An EXAFS study

Corradi, G. and Chadwick, Alan V. and West, Anthony R. and Cruickshank, K. and Paul, M. (1995) On the substitution site of Cr and Fe in LiNbO3: An EXAFS study. In: 7th Europhysical Conference on Defects in Insulating Materials (Eurodim 94), Lyon, France. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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K-edge EXAFS spectra of 5 molar% Cr or Fe have been observed in LiNbO3 and also in Mg co-doped samples. The results in congruent LiNbO3 can be interpreted in terms of a relaxed Li substitution model, however, in the case of Cr, the formation of pairs occupying Li and Nb sites seems also to be important. In stoichiometric or Mg-containing samples Fe is partly displaced to the Nb site while for Cr the dominating process seems to be the formation of aggregates with the participation of Mg.

Item Type: Conference or workshop item (Other)
Uncontrolled keywords: crystal defects; impurity centres; transition elements; lithium niobate; EXAFS
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK9001 Nuclear engineering
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts
Depositing User: P. Ogbuji
Date Deposited: 04 Jun 2009 13:35
Last Modified: 02 Jun 2014 13:42
Resource URI: https://kar.kent.ac.uk/id/eprint/19774 (The current URI for this page, for reference purposes)
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