The electrical properties and relaxation behavior of AgNb1/2Ta1/2O3 ceramic

Prasad, K g and Niranjan, Manish K and Asthana, Saket (2017) The electrical properties and relaxation behavior of AgNb1/2Ta1/2O3 ceramic. Physica B: Condensed Matter, 506. pp. 42-47. ISSN 0921-4526

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Polycrystalline AgNb1/2Ta1/2O3 powder was prepared by solid state reaction method. Preliminary x- ray diffractogram analysis of some aspects of crystal structure showed that a single phase compound formed exhibiting a monoclinic system. Impedance spectroscopy showed the presence of both bulk and grain boundary effects in the material. The relaxation behavior was studied by fitting electric modulus with Bergman function confirms us the existence of non- Debye type of relaxation the material. The ac conductivity spectrum obeyed Funke's double power law and fitting in results, the hopping parameters n(1),n(2) were indicating the existence of small and large range polaron hopping in the material. The band gap of the material 3.02 eV measured by using UV visible spectroscopy.

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IITH Creators:
IITH CreatorsORCiD
Niranjan, Manish KUNSPECIFIED
Asthana, Saket
Item Type: Article
Uncontrolled Keywords: Ceramics; Dielectric properties; Complex impedance; Conductivity studies
Subjects: Physics
Divisions: Department of Physics
Depositing User: Team Library
Date Deposited: 17 Apr 2017 10:42
Last Modified: 29 Aug 2017 09:35
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