# Thermal diffusivity of IV-V-VI glassess - An evidence for the existence of a mechanical threshold

Srinivasan, A and Madhusoodanan, KN and Gopal, ESR (1992) Thermal diffusivity of IV-V-VI glassess - An evidence for the existence of a mechanical threshold. In: Solid State Communications, 83 (2). pp. 163-166.

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## Abstract

The thermal diffusivity of two sets of $Ge_xSb_ySe_{l00-x-y}, Ge_xAs_yTe_{100-x-y}$ and $Si_xAs_yTe_{l00-x-y}$ glasses have been measured using the photoacoustic technique. The thermal diffusivity data of the three glass systems show maxima at the compositions corresponding to the average coordination number $\langle r \rangle$ = 2.60. These results have been interpreted in the light of the existence of a mechanical threshold and the formation and development of a layered structure in these network glasses.

Item Type: Journal Article Solid State Communications Elsevier Copyright of this article belongs to Elsevier. Division of Physical & Mathematical Sciences > Physics 10 Oct 2006 19 Sep 2010 04:32 http://eprints.iisc.ac.in/id/eprint/8809