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Research Article | Open Access

Investigation of magnetoelectric effect in lead free K0.5Na0.5NbO3-BaFe12O19 novel composite system

Smart Materials Research Laboratory, Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247667, India
National Physical Laboratory, New Delhi, Delhi 110012, India
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Lead-free magnetoelectric composites (1 ̶x)K0.5Na0.5NbO3-(x)BaFe12O19 (x = 30, 40, and 50 wt%) are synthesized using solid state reaction method. X-ray diffraction (XRD) patterns confirm formation of diphase composites. Field emission scanning electron microscopy (FE-SEM) gives information about grain size, connectivity, and microstructure of constituent phases. Dielectric parameters of composite samples are studied as a function of temperature and the transition temperatures corresponding to both the constituent phases are observed in the composite samples. Dielectric constant has been found to decrease with addition of ferrite. Room temperature multiferroic behaviour has been confirmed using P-E and M-H hysteresis loops and magnetoelectric measurement. Polarization is found to decrease; however, magnetization increases with ferrite weight percentage. The highest αME of 4.08 mV/(cm•Oe) is obtained for x = 30 wt% composite and it is realized that ferrite content significantly affects magnetoelectric behaviour.


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Journal of Advanced Ceramics
Pages 333-344
Cite this article:
KUMAR Y, YADAV KL, SHAH J, et al. Investigation of magnetoelectric effect in lead free K0.5Na0.5NbO3-BaFe12O19 novel composite system. Journal of Advanced Ceramics, 2019, 8(3): 333-344.








Web of Science






Received: 03 September 2018
Revised: 08 January 2019
Accepted: 11 January 2019
Published: 27 July 2019
© The author(s) 2019

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