Structural, dielectric and magnetic studies of ferrite-ferroelectric composites

Khader, S. Abdul and Parveez, Asiya and Chaudhuri, Arka and Shekhawat, M. S. and Sankarappa, T. (2020) Structural, dielectric and magnetic studies of ferrite-ferroelectric composites. Physica B-Condensed Matter, 584. ISSN 1873-2135

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Abstract

The composites of ferrite-ferroelectric system (x) Mg0.2Cu0.5Zn0.3Fe2O4 thorn (1-x) BaTiO3 (x = 15%, 30% and 45%) were synthesized by sintering the mixtures of ferroelectric BaTiO3 (BTO) and ferrite component Mg0.2Cu0.5Zn0.3Fe2O4 (MCZF). Ferrimagnetic MCZF was prepared using auto-combustion method where as ferroelectric BTO was procured commercially from Sigma-Aldrich. The presences of two phases in magnetoelectric composites were probed by X-ray diffraction (XRD) studies. The peaks observed in the XRD spectrum indicated spinel cubic structure for MCZF ferrite and tetragonal perovskite structure for BTO and, both spinel and pervoskite structures for synthesized composites. Surface morphology of the samples has been investigated using Field Emission Scanning Electron Microscope (FESEM). Frequency dependent dielectric properties of synthesized composites were measured from 100 Hz to 1 MHz at room temperature (RT) using HIOKI LCR HI-TESTER. The dielectric dispersion is observed at lower frequencies for the synthesized ME composites. The magnetic properties of synthesized composites were analyzed using a Vibrating Sample Magnetometer. It is observed that the composites exhibited magnetic hysteresis with narrow loops indicating the magnetic ordering in the composites. All the measurements were carried out at room temperature.

Item Type:	Article
Additional Information:	International Conference on Magnetic Materials and Applications (ICMAGMA), Natl Inst Sci Educ & Res, Sch Phys Sci, Jatni, INDIA, DEC 09-13, 2018
Uncontrolled Keywords:	Ferroelectric; Magnetoelectric; Polarization; Spinel; Small polarons; Tangent loss
Subjects:	D Physical Science > Material Science
Divisions:	Department of > Material Science
Depositing User:	Mr Umendra uom
Date Deposited:	17 Feb 2021 06:14
Last Modified:	17 Feb 2021 06:14
URI:	http://eprints.uni-mysore.ac.in/id/eprint/15594

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