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Observation of Dielectric Peaks in Glassy Se70Te20Sn10 Alloy

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Abstract:

The Temperature and Frequency Dependences of the Dielectric Constants () and Dielectric Loss (") Were Studied in Glassy Se70Te20Sn10 Alloy in the Audio-Frequency Range below the Glass Transition Region. the Results Indicated that Dielectric Dispersion Occurred in Glassy Se70Te20Sn10 Alloy. Well-Defined Dielectric Peaks Were Obtained in Glassy Se70Te20Sn10 Alloy; these Are Rarely Observed in Chalcogenide Glasses. such Loss Peaks Were Not Observed in the Glassy Se80-xTe20Snx System in the past for Sn Concentrations of x ≤ 8. A Detailed Analysis of the Data Showed that the Results Could Be Explained in Terms of Dipolar Relaxation, with a Distribution of Relaxation Times, this Is Quite Expected in the Case of Chalcogenide Glasses.

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Periodical:

Defect and Diffusion Forum (Volume 329)

Pages:

165-175

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.329.165

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Online since:

July 2012

Authors:

A. Sharma, N. Mehta

Keywords:

Chalcogenides, Dielectric Constant, Dielectric Loss, Dielectric Relaxation

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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