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Analysis of dielectric relaxation in glassy Se and Se98M2 (M = Ag, Cd and Sn) alloys

A study of metal-induced effects

Published online by Cambridge University Press:  11 July 2012

A. Sharma  and
N. Mehta
A. Sharma
Affiliation:
Department of Physics, Banaras Hindu University, Varanasi 221005, India
N. Mehta*
Affiliation:
Department of Physics, Banaras Hindu University, Varanasi 221005, India
*
ae-mail: [email protected]
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Abstract

The present work reports the temperature and frequency dependence of dielectric constant (ε′) and dielectric loss (ε′′) in binary Se98M2 (Ag, Cd and Sn) alloys. The measurements have been made in the frequency range (1–500 kHz) and in the temperature range 297–345 K. The values of dielectric constant (ε′) and dielectric loss (ε′′) were found to decrease with frequency and increase with temperature. The maximum barrier height Wm is calculated from dielectric measurements according to the Guintini equation. The results indicate that the dielectric dispersion exists in the present glassy systems in the above frequency and temperature range.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 59 , Issue 1 , July 2012 , 10101
Copyright
© EDP Sciences, 2012

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