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Manifestation of intermediate phase in Cu doped Si-Te glasses

Roy, Diptoshi and Tanujit, B and B, Jagannatha K and Varma, G Sreevidya and Asokan, S and Das, Chandasree (2020) Manifestation of intermediate phase in Cu doped Si-Te glasses. In: Journal of Non-Crystalline Solids, 531 . ISSN 00223093

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Official URL: http://doi.org/10.1016/j.jnoncrysol.2019.119863


Alternating differential scanning calorimetry (ADSC) analysis has been carried out on bulk Si15Te85-xCux(1≤x≤10) glasses to examine the thermal properties of the glassy samples in detail. The investigations on thecompositional dependence ofΔHNR(non- reversing enthalpy) manifests a trough between the composition2≤x≤6 which stands as the basis of the presence of Boolchand's Intermediate phase in that range.Additionally, anomalous behavior has been observed at the compositional dependence of various thermalparameters atx= 9, which stipulates the appearance of chemical threshold at the stated composition. Annealedbulk samples have been exposed to XRD studies to discern the type of formed crystalline phases. The study hasreported the manifestation of Te, Si1Te2,Si2Te3,Cu3Te2 phases.

Item Type: Journal Article
Publication: Journal of Non-Crystalline Solids
Publisher: Elsevier
Additional Information: Copyright of this article belongs to Elsevier
Keywords: Chalcogenide glass; Boolchand intermediate phase; Chemical threshold
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited: 09 Jan 2020 06:37
Last Modified: 09 Jan 2020 06:37
URI: http://eprints.iisc.ac.in/id/eprint/64312

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