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

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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(ΔE) and thermal stability (ΔT) 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.

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Authors and Affiliations

  1. Department of Physics, Indian Institute of Science,India, Bangalore 560012, IN

    K. Ramesh, K.S. Sangunni & E.S.R. Gopal

  2. Department of Instrumentation, Indian Institute of Science,India, Bangalore 560012, IN

    S. Asokan

Authors
  1. K. Ramesh
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  2. S. Asokan
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  3. K.S. Sangunni
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  4. E.S.R. Gopal
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Received: 27 January 1998 / Revised: 12 June 1998 / Accepted: 3 July 1998

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Ramesh, K., Asokan, S., Sangunni, K. et al. Effect of topological thresholds on thermal behaviour of germanium telluride glasses containing metallic additive. Eur. Phys. J. B 6, 207–212 (1998). https://doi.org/10.1007/s100510050543

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  • DOI: https://doi.org/10.1007/s100510050543

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