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A structural study of gallium lanthanum sulphide glass bulk and thin films by x-ray absorption fine structure spectroscopy

Record type: Article

Atomic-scale structure changes in gallium lanthanum sulphide bulk glass and ablation-deposited thin films have been studied by the x-ray absorption fine-structure (EXAFS) technique. EXAFS spectra have been recorded at the sulphur and gallium K edges, and the lanthanum L3 edge, and this has allowed us to construct a detailed picture of the local structure in bulk glass and thin films. The EXAFS results indicate that there is chemical disorder in the structural network of the GLS thin films. although chemical ordering is predominant in bulk GLS glass. The existence of wrong bonds, i.e. Ga-Ga and S-S bonds, in the structure has been discussed and correlated with optical absorption experiments undertaken on the same samples to provide a consistent picture of the local structure

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Citation

Asal, R., Rivers, P.E. and Rutt, H.N. (1997) A structural study of gallium lanthanum sulphide glass bulk and thin films by x-ray absorption fine structure spectroscopy Journal of Physics: Condensed Matter, 9, (29), pp. 6217-6230. (doi:10.1088/0953-8984/9/29/007).

More information

Published date: July 1997

Identifiers

Local EPrints ID: 77761
URI: http://eprints.soton.ac.uk/id/eprint/77761
ISSN: 0953-8984
PURE UUID: 56884eba-2835-4962-b573-c20b3abf8699

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:29

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Contributors

Author: R. Asal
Author: P.E. Rivers
Author: H.N. Rutt

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