Magnetodielectric properties of (1−x)PMN-PT/xCFO particulate composites

Author

Zabotto, F.L. ; Gualdi, A.J. ; de Oliveira, A.J.A. ; Eiras, J.A. ; Garcia, D.

Author_Institution

Ferroelectric Ceramics Group (GCFerr), Univ. of Sao Carlos, São Carlos, Brazil

fYear

2012

fDate

9-13 July 2012

Firstpage

1

Lastpage

3

Abstract

The magnetic field dependence of the magnetodielectric effect of (1-x)PMN-PT/xCFO particulate composites was systematically investigated. At room temperature, it was found there is a giant magnetodielectric response up to 10% around the electromechanical resonance frequency for a magnetic field of 15kOe. Additionally, at low magnetic fields a positive magnetodielectric coefficient (~2%) associated to the magnetoelectric coupling polarization and dependent of the CFO concentration was observed.

Keywords

cobalt compounds; composite materials; dielectric polarisation; electromechanical effects; ferroelectric materials; ferroelectricity; lead compounds; magnetoelectric effects; PMN-PbTiO₃-CoFe₂O₄; electromechanical resonance frequency; ferroelectric phase; giant magnetodielectric response; magnetic field dependence; magnetoelectric coupling polarization; particulate composites; positive magnetodielectric coefficient; temperature 293 K to 298 K; Magnetic field measurement; Magnetic resonance; Magnetic separation; Magnetoelectric effects; Magnetostriction; PMN-PT; composites; magnetodielectric; magnetoelectric;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics held jointly with 2012 European Conference on the Applications of Polar Dielectrics and 2012 International Symp Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (ISAF/ECAPD/PFM), 2012 Intl Symp

Conference_Location

Aveiro

Print_ISBN

978-1-4673-2668-1

Type

conf

DOI

10.1109/ISAF.2012.6297850

Filename

6297850