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Improved magnetoelectric effect in lead free [72.5(Bi1/2Na1/2TiO3)–22.5(Bi1/2K1/2TiO3)–5(BiMg1/2Ti1/2O3)]: CoFe2O4 particulate nanocomposites prepared by sol–gel method

  • Mintu TyagiEmail author
  • Puneet Sharma
  • Mukesh Kumari
  • Megha Thakur
Article

Abstract

Non lead based ternary solid solution 72.5(Bi1/2Na1/2TiO3)–22.5(Bi1/2K1/2TiO3)–5(BiMg1/2Ti1/2O3) with high piezoelectric coefficient (d 33 ) of 180 pC/N has been prepared. Further, magnetoelectric (ME) particulate composites (1 − x)[72.5(BNT)-22.5(BKT)-5(BMgT)] − x CoFe2O4 (CFO) (x = 0, 0.1, 0.2, 0.3) were synthesized and a systematic study of structural, ferroelectric, magnetic and ME properties was undertaken. Large ME voltage coefficient (α E ) values accompanied by large piezoelectric coefficient and the adequate interface contact between the magnetic and electric phases were observed in these composites. The composite with x = 0.2, showed the large value of ME voltage coefficient (α E ) ~112 mV/cmOe due to higher d 33 (~125 pC/N) of composite. The present study demonstrate a new environmental-friendly ME particulate composite for future applications.

Keywords

Ferrite BaTiO3 Particulate Composite CoFe2O4 NiFe2O4 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This work was supported in part by University Grant Commission (UGC), India, under Grant 40/446/2011 (SR).

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Mintu Tyagi
    • 1
    Email author
  • Puneet Sharma
    • 2
  • Mukesh Kumari
    • 3
  • Megha Thakur
    • 1
  1. 1.Nanotechnology Research LaboratoryDesh Bhagat UniversityMandi GovindgarhIndia
  2. 2.School of Physics and Materials ScienceThapar UniversityPatialaIndia
  3. 3.Magnetics and Advanced Ceramics Laboratory, Department of PhysicsIndian Institute of TechnologyDelhiIndia

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