Electrical properties of Li2BiV5O15 ceramics

The polycrystalline sample of Li2BiV5O15 was prepared by a mixed-oxide method, relatively at low temperature (i.e., 550 deg C). Room temperature XRD pattern confirms the formation of the compound with an orthorhombic crystal system. Studies of dielectric properties show that the compound exhibits an...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2007-05, Vol.395 (1-2), p.98-103
Main Authors: DAS, P. S, CHAKRABORTY, P. K, BEHERA, Banarji, CHOUDHARY, R. N. P
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric properties of solids and liquids
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Physics
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Summary:The polycrystalline sample of Li2BiV5O15 was prepared by a mixed-oxide method, relatively at low temperature (i.e., 550 deg C). Room temperature XRD pattern confirms the formation of the compound with an orthorhombic crystal system. Studies of dielectric properties show that the compound exhibits an anomaly at 416 deg C (usually called transition temperature) at 50 and 100kHz, with diffuse-type phase transition. The electrical parameters of the material were studied using complex impedance spectroscopy in a wide temperature (30-500 deg C) and frequency (102-106Hz) range. The compound exhibits non-Debye of relaxation process. The activation energy of the material was found to be 1.08eV in the high temperature region.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2007.02.065