Dielectric properties and relaxation dynamics in PbF2−TeO2−B2O3−Eu2O3 glasses

Wagh, Akshatha and Raviprakash, Y and Kamath, Sudha D (2015) Dielectric properties and relaxation dynamics in PbF2−TeO2−B2O3−Eu2O3 glasses. Transactions of Nonferrous Metals Society of China, 25. pp. 2637-2645.

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Frequency and temperature dependent dielectric dispersion of 20PbF2−20TeO2−(60−x)B2O3−xEu2O3(x=0 to 2.5, mole fraction, %) glasses prepared by the melt−quenching technique were investigated in the frequency range 1 Hz−10 MHz and temperature range 313−773 K. Dielectric relaxation dynamics was analyzed based on the electric modulus behavior. Dielectric losses (tan δ) are found to be negligibly small in the temperature range 313−523 K, proving good thermal stability of the glasses. The present Eu2O3-doped oxyfluroborate glasses showed low dielectric loss at higher frequency and lower temperature, proving their suitability for nonlinear optical materials

Item Type: Article
Uncontrolled Keywords: doped glass; dielectric spectroscopy; electric modulus; AC conductivity; activation energy; Arrhenius equation
Subjects: Engineering > MIT Manipal > Physics
Depositing User: MIT Library
Date Deposited: 16 Oct 2015 11:38
Last Modified: 16 Oct 2015 11:38
URI: http://eprints.manipal.edu/id/eprint/144415

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