Open AccessDielectric Properties of La0.4Ca0.6Mn0.4Ti0.6O3 Ceramic Oxide
Author(s) -
Walter Charles Primus,
Abdul Halim Shaari,
Wan Fauziah Wan Yusoff,
Zainal Abidin Talib,
Mazni Mustafa
Publication year - 2014
Publication title -
malaysian journal of fundamental and applied sciences
Language(s) - English
Resource type - Journals
ISSN - 2289-599X
DOI - 10.11113/mjfas.v5n1.288
Subject(s) - dielectric , ceramic , capacitor , oxide , materials science , capacitance , ceramic capacitor , thermal conduction , conductance , dielectric loss , condensed matter physics , composite material , chemistry , optoelectronics , electrical engineering , voltage , physics , metallurgy , electrode , engineering
The dielectric properties of La0.4Ca0.6Mn0.4Ti0.6O3 ceramic oxide was investigated under various temperatures. A Debyelikebehaviour was observed although the dc conduction effects at low frequencies almost overlapping the relaxationpeak in the imaginary part. This feature of dielectric behaviour was explained using trapping mechanism. An equivalentcircuit modeling was proposed to represent the electrical behaviour of this sample using universal capacitor, C*(4) =B(i4)n-1. The circuit modeling is consisting of two series of dispersive capacitors in parallel with conductance and highfrequency capacitance.