Room-temperature multiferroic (magnetoelectric–magnetodielectric) coupling properties of hybrid microwave-sintered (1 − x)BaZr0.25Ti0.75O3 − xCo0.9Ni0.1Fe2O4 lead-free electromagnetic composites

Sagar M. Mane, Aviraj M. Teli, Sonali A. Beknalkar, Nishant T. Tayade, Arjun N. Tarale, Pravin M. Tirmali, Shrinivas B. Kulkarni, Jae Cheol Shin, Jaewoong Lee

Research output: Contribution to journalArticlepeer-review

Abstract

This paper reports on the systematic investigation of the room-temperature magnetoelectric and magnetodielectric coupling coefficients on adding ferromagnetic phase (xCo0.9Ni0.1Fe2O4, where x = 0.1, 0.2, 0.3, and 0.4) to the non-toxic lead-free ferroelectric phase (BaZr0.25Ti0.75O3) prepared via efficient, ultrafast, eco-friendly hybrid microwave sintering at 1100 °C. Rietveld’s refinement of the observed diffraction patterns reflects mixed-phase cubic and tetragonal crystal symmetries with space group Pm3m and P4mm for the ferroelectric phase and cubic Fd-3m for a ferromagnetic phase in each composite which was further verified through micro-Raman spectroscopy. Ferroelectric-ferrite composite at x = 0.2, i.e., 0.8(BaZr0.25Ti0.75O3) − 0.2(Co0.9Ni0.1Fe2O4), had highest magnetoelectric and magnetodielectric coupling coefficients αME= 2.71 mV / cm Oe and MD (%) = 5.19 at 1 kHz applied frequency, respectively. The existence of both ferroelectric and magnetic phases in each composite was confirmed using P–E and M–H hysteresis loops, respectively. This study provides an efficient alternative approach for developing multiferroic composites for various technological applications.

Original languageEnglish
Article number1863
JournalJournal of Materials Science: Materials in Electronics
Volume34
Issue number27
DOIs
StatePublished - Sep 2023

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