Observation of high pressure o-GeTe phase at ambient pressure in Si-Te-Ge glasses

Gunti, Srinivasa Rao and Sundarrajan, Asokan (2012) Observation of high pressure o-GeTe phase at ambient pressure in Si-Te-Ge glasses. In: AIP ADVANCES, 2 (1).

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Abstract

Te-rich Si15Te85-xGex (1 <= x <= 11) glasses are found to exhibit an anomalous phase separations with germanium composition. The structural transformation of o-GeTe crystalline phase from o-GeTe with a = 11.76 angstrom, b = 16.59 angstrom, c = 17.44 angstrom, to high pressure o-GeTe with a new reduced lattice parameters a = 10.95 angstrom, b = 4.03 angstrom, c = 4.45 angstrom, is observed at T-c3 in the composition range 6 <= x <= 11. Raman studies support the possible existence of high pressure o-GeTe phase which is observed in X-ray diffraction experiments. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. http://dx.doi.org/10.1063/1.3696862]

Item Type:	Journal Article
Publication:	AIP ADVANCES
Publisher:	AMER INST PHYSICS
Additional Information:	Copyright for this article belongs to the AIP
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	01 Aug 2012 12:29
Last Modified:	01 Aug 2012 12:29
URI:	http://eprints.iisc.ac.in/id/eprint/44528

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