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High-pressure studies on the critical composition in Ge—As—Te glasses

Srinivasan, A and Ramesh, K and Madhusoodanan, KN and Gopal, ESR (1992) High-pressure studies on the critical composition in Ge—As—Te glasses. In: Philosophical Magazine Letters, 65 (5). pp. 249-253.

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Abstract

High-pressure resistivity measurements have been performed on G37.5AsxTe92.5-x (x = 20, 40, 45, 50 and 55) and Ge10AsxTe90-x (x = 15, 20, 35, 40, 45 and 50) glasses. The glasses show reversible metallization behaviour under pressure. The pressure derivative of the logarithm of the resistivity of the glasses is a minimum at glass compositions corresponding to the average coordination number [r] = 2.60. This behaviour is interpreted on the basis of the existence of a critical composition in glasses with a layered structure.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 01 Apr 2011 09:20
Last Modified: 22 Feb 2012 06:04
URI: http://eprints.iisc.ernet.in/id/eprint/36316

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