EXAFS studies of arsenic chalcogenide glasses

Parthasarathy, R and Rao, KJ and Rao, CNR (1982) EXAFS studies of arsenic chalcogenide glasses. In: Journal of Physics C: Solid State Physics, 15 (17). pp. 3649-3655.

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Abstract

An EXAFS study at the AsK edge of the ternary glasses As2(S, Se)3 and As2(Se, Te)3 and the binary As2S3, As2Se3 and As2Te3 glasses has been carried out. Radial structure functions show that the environment of As in glasses of intermediate compositions is quite different from that in the binary glasses. In the As2(S, Se)3 system, this might arise from chemical disorder in the network while in the As2(Se, Te)3 system increased ionicity could be the cause of this behaviour. Glasses where the constituent atoms are of similar size seem to exhibit fewer peaks in the radial structure function.

Item Type:	Journal Article
Publication:	Journal of Physics C: Solid State Physics
Publisher:	Institute of Physics
Additional Information:	Copyright of this article belongs to Institute of Physics.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	19 Jul 2009 04:37
Last Modified:	19 Sep 2010 05:37
URI:	http://eprints.iisc.ac.in/id/eprint/21519

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