Title of article
Relaxor behaviour of Pb[(Mg3/4Co1/4)1/3Nb2/3]O3 ceramic
Author/Authors
Prasad، نويسنده , , K. and Kumar، نويسنده , , A. and Choudhary، نويسنده , , S.N. and Choudhary، نويسنده , , R.N.P. Choudhary، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2005
Pages
6
From page
1641
To page
1646
Abstract
Pb[(Mg3/4Co1/4)1/3Nb2/3]O3 (PMCN) ceramic was prepared by a columbite precursor method. The structural analysis revealed the cubic phase of PMCN at room temperature. Dielectric studies of the compound indicated the relaxor behaviour with diffuse phase transition (DPT). The transition temperature (Tm) was found to be at − 22 °C at 1 kHz. The frequency dependence of Tm has been modeled using Vogel–Fulcher relation. The dielectric relaxation in PMCN is found analogous to the magnetic relaxation in spin-glass system. Complex impedance analysis indicated multi-Debye-type dielectric relaxation in PMCN and relaxation frequency shifts to higher frequencies with the increase in temperature.
Keywords
dielectric properties , Dielectric relaxation , Diffuse phase transition , Relaxor ferroelectrics
Journal title
Solid State Ionics
Serial Year
2005
Journal title
Solid State Ionics
Record number
1717886
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