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M. PRASHANT KUMAR1, T. SANKARAPPA1,*
The dielectric properties in two series of single and mixed alkali doped vanadotellurite glasses have been investigated in the frequency range 50 Hz to 5 MHz and temperature range 300 K to 500 K. Hunt’s model was invoked to analyze the data and the results indicated that the relaxation process has a local character which can be described by hopping between pairs of multivalent sites. Activation energies for dielectric loss process were found to be in close agreement with dc activation energies. The linear relationship between ac and dc conductivities has been confirmed in both systems.
Tellurite glasses, Transition metal ions, Alkali ions, Dielectric relaxation processes, Activation energies.
M. PRASHANT KUMAR, T. SANKARAPPA, Dielectric relaxation studies in some alkali doped vanadotellurite glasses, Optoelectronics and Advanced Materials - Rapid Communications, 2, 4, April 2008, pp.237-241 (2008).
Submitted at: Feb. 11, 2008
Accepted at: April 3, 2008
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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