Open AccessMagnetoelectric 0.2(CoFe2O4)-0.8(Ba0.85Ca0.15 Zr0.1Ti0.9O3) lead free composite for spintronic applications
Author(s) -
Pittala Suresh,
S. Vishnunarayanan,
Prajwal Kumar
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/577/1/012062
Subject(s) - composite number , ferroelectricity , materials science , piezoelectricity , magnetization , polarization (electrochemistry) , electric field , condensed matter physics , analytical chemistry (journal) , nuclear magnetic resonance , magnetic field , composite material , dielectric , chemistry , physics , optoelectronics , quantum mechanics , chromatography
Lead free (0.2) CoFe 2 O 4 (CFO) – (0.8) Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 (BCZT) composite is prepared by mechanical mixing of CFO and BCZT phases. The constituent phases, CFO and BCZT are prepared by sol-gel technique. XRD data shows characteristic peaks of both magnetic and piezoelectric phases without any secondary phases confirming the formation of the composite. Polarization ( P ) versus Electric field ( E ) measurements show a proper ferroelectric loop for BCZT with P max ∼ 4.3 μC/cm 2 whereas composite shows a leaky behaviour. Room temperature M-H loops show a decrease of magnetization from ∼ 80 emu/g for pure CFO to 17 emu/g for composite. Thus, 0.2 CFO-0.8 BCZT composite shows both electric and magnetic properties at room temperature.