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Dielectric prοperties and cοmplex impedance οf the 0.69PbMg1/3Nb2/3Ο3– 0.31PbTiΟ3 relaxοr ceramic.

Authors :
Hnawi, Salma Kaotar
Lifi, Houda
Lifi, Mohamed
Khrissi, Salam
Benkhouja, Khalil
Ait ali, Mustapha
Source :
Phase Transitions. Jun2024, Vol. 97 Issue 6, p366-374. 9p.
Publication Year :
2024

Abstract

Impedance spectroscopy assessed dielectric properties of PMN at a single PT concentration. Real and imaginary impedance of (1−x) PMN–xPT materials were analyzed using this technique. Through electrical impedance spectroscopy, the loss tangent factor and electric modulus were determined, leveraging research on semiconductor conduction. The study also presented the synthesis and characterization of solid ceramic lead magnesium nibate-lead titanate (1−x) PbMg1/3Nb2/3-xPbTi3, representing a significant advancement in impedance spectroscopy research. The dielectric behavior was examined by studying the polarization evolution in response to the applied field, aiming to replicate the magnetic phase boundary configuration found in typical ferroelectric behavior. Temperature had a notable impact on the hysteresis loop, with increasing temperature and decreasing applied field resulting in decreased leftover polarization and increased coercive field. The impedance and complex modulus graphs exhibited distinct semicircle patterns attributed to higher grain boundary resistance and capacitance compared to (1−x) PMN-xPT. The Nyquist plot highlighted bulk effects. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01411594
Volume :
97
Issue :
6
Database :
Academic Search Index
Journal :
Phase Transitions
Publication Type :
Academic Journal
Accession number :
177482068
Full Text :
https://doi.org/10.1080/01411594.2023.2227315