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
Publication:	European Physical Journal B
Publisher:	Springer Verlag
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 Appiled Physics Division of Physical & Mathematical Sciences > Physics
Date Deposited:	17 Sep 2004
Last Modified:	11 Jan 2012 07:33
URI:	http://eprints.iisc.ac.in/id/eprint/1585

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