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Novel Method of Synthesis of Multiferroic Nickel Cobalt Ferrite–Barium Strontium Titanate Composite System
Author(s) -
Pahuja Poonam,
Sharma Richa,
Singh Vinamrita,
Tandon Ram Pal
Publication year - 2014
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12346
Subject(s) - materials science , pellets , composite number , dielectric , cobalt , ferroelectricity , multiferroics , barium titanate , nickel , ferrite (magnet) , strontium , sintering , composite material , magnetization , ceramic , metallurgy , magnetic field , optoelectronics , quantum mechanics , physics , nuclear physics
Multiferroic composites have been prepared by submerging of barium strontium titanate (Ba 0.95 Sr 0.05 TiO 3 ) ( BST ) pellets (sintered at different temperatures) in nickel cobalt ferrite (Ni 0.8 Co 0.2 Fe 2 O 4 ) ( NCF ) Sol followed by sintering. This method resulted into uniform distribution of small amount of NCF nanoparticles in BST matrix. The presence of NCF within BST pellets has been confirmed by magnetization versus magnetic field loops and energy dispersive X‐ray spectroscopy ( EDS ) measurements. Smaller content of NCF in composite samples prepared from submerging method significantly affected dielectric, piezoelectric, and ferroelectric properties. Magnetodielectric effect in composite samples confirmed the presence of magnetoelectric coupling.