Fabrication, electrical and magnetic properties of 0.7(BiGd_xFe_1−xO₃)−0.3(PbTiO₃) composites

Abstract

The polycrystalline samples having chemical formula 0.7(BiGd_xFe_1−xO₃)−0.3(PbTiO₃) (x = 0.0, 0.05, 0.10, 0.15 and 0.20) were fabricated by using high temperature mixed oxide route. The X-ray diffraction spectra suggested rhombohedral (major) symmetry with small impurity phases. The surface microstructure showed a highly dense packing of grains throughout the wider area for all samples. The dielectric permittivity and loss factor of all samples were studied with the help of temperature-dependent dielectric parameters. The relaxation mechanism was suggested from the dielectric and impedance spectroscopy. The conduction mechanism of all samples was investigated. The P–E and M–H loops of all the samples were taken at room temperature showing the multiferroic properties.

Keywords:

• Dielectic
• conductivity
• impedance
• ferroelectric
• magnetic properties

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was financially supported by DST-Fast Track Project (No. SR/FTP/PS-036/2011) Scheme for Young Scientist New Delhi of SERB.