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Effect of topological thresholds on thermal behaviour of germanium telluride glasses containing metallic additive

Ramesh, Kashi S and Asokan, S and Sangunni, KS and Gopal, ESR (1998) Effect of topological thresholds on thermal behaviour of germanium telluride glasses containing metallic additive. In: European Physical Journal B, 6 (2). pp. 207-212.

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Abstract

Differential Scanning Calorimetric (DSC) studies on AgxGe15Te85-x glasses have been undertaken over a wide range of compositions, to understand the effect of topological thresholds on thermal properties. It is found that the compositional dependence of glass transition temperature (T-g), crystallization temperature (T-c), activation energy for crystallization (Delta E) and thermal stability (Delta T) show anomalies at the rigidity percolation threshold. Unusual variations also observed in different thermal properties at the composition x = 20, clearly establishes the occurrence of chemical threshold in these glasses.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Springer Verlag.
Keywords: Differential scanning calorimetric;Disordered solids;Glasses;Thermal properties of condensed matter
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation and Applied Physics (Formally ISU)
Division of Physical & Mathematical Sciences > Physics
Date Deposited: 17 Sep 2004
Last Modified: 11 Jan 2012 07:33
URI: http://eprints.iisc.ernet.in/id/eprint/1585

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