Threshold electrical switching in bulk As-Te-In glasses: composition dependence and topological effects

Devaraju, JT and Sharmila, BH and Asokanand, S and Acharya, KV (2001) Threshold electrical switching in bulk As-Te-In glasses: composition dependence and topological effects. In: Philosophical Magazine B-Physics Of Condensed Matter Statistical, 81 (6). pp. 583-590.

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Abstract

The current-voltage (I-V) characteristics and electrical switching behaviours of As40Te60-xInx (5 less than or equal tox less than or equal to 16.5) As35Te65-xInx (10 less than or equal tox less than or equal to 19) and As30Te70-xInx (12.5 less than or equal to x less than or equal to 21.5) have been studied over wide ranges of indium concentrations x and average coordination numbers <r >. All the glasses studied show a threshold switching behaviour. Further, the composition dependence of the switching field is found to exhibit a distinct change in slope at <r > = 2.65 and a local minimum at around <r > = 2.69. These results indicate the possibility that rigidity percolation occurs at around <r > = 2.65 and chemical threshold around <r > = 2.69.

Item Type:	Journal Article
Publication:	Philosophical Magazine B-Physics Of Condensed Matter Statistical
Publisher:	Taylor and Francis Group
Additional Information:	Copyright of this article belongs to Taylor and Francis Group.
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	11 Feb 2010 06:27
Last Modified:	23 Feb 2012 08:54
URI:	http://eprints.iisc.ac.in/id/eprint/17710

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