Investigations on magnetoelectric response in binary ferroelectric {0.94Na0.5Bi0.5TiO3 (NBT)-0.06Ba0.85Sr0.15Zr0.1Ti0.9O3 (BSZT)}-ferrimagnetic (NiFe2O4) particulate composites

Goel, Rahul; Aggarwal, Mehak; Bansal, Pankhuri; Kumar, Ram; Dhiman, Shobhna; Singh, Arun K.; Kumar, Sanjeev

doi:10.1007/s00339-022-05634-6

Cited by 4 publications

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“…[ 9 ] Van Suchetelen [ 10 ] first described magnetoelectric composites with coexisting magnetostrictive and piezoelectric effects in 1972. Magnetoelectric responses have previously been studied for a variety of particulate composites and laminated film structures including{0.94Na 0.5 Bi 0.5 TiO 3 (NBT)‐0.06Ba 0.85 Sr 0.15 Zr 0.1 Ti 0.9 O 3 (BSZT)}(NiFe 2 O 4 ), [ 11 ] (CoFe 2 O 4 )–(0.93Na 0.5 Bi 0.5 TiO 3 ‐0.07BaTiO 3 ), [ 12 ] Ba 0.77 Ca 0.23 TiO 3 –Ni 0.6 Zn 0.25 La 0.15 Fe 2 O 4 , [ 13 ] (1− x )0.94Na 0.5 Bi 0.5 TiO 3 ‐0.06BaTiO 3 – x CoFe 2 O 4 , [ 14 ] x Ni 0.50 Zn 0.40 Mn 0.10 Fe 2 O 4 + (1− x )Bi 0.90 La 0.10 Fe 0.93 Eu 0.07 O 3 , [ 15 ] Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 /PZT, [ 16 ] (1− x )PMN‐PT/ x CFO, [ 17 ] Fe 77.5 B 15 Si 17.5 /PbZr 0.53 Ti 0.47 O 3 , [ 18 ] Sm‐doped Pb(Mg 1/3 Nb 2/3 )‐PbTiO 3 /NiFe 2 O 4 , [ 19 ] NFO/PZT. [ 20 ] This research article is concerned with the investigation of electrical properties and magnetoelectric responses for both particulate composites CuFe 2 O 4 /PZT and laminated trilayered film composites CuFe 2 O 4 /PZT/CuFe 2 O 4 and PZT/CuFe 2 O 4 /PZT that have not yet been reported in the literature survey ( Figure ).…”

Section: Introductionmentioning

confidence: 99%

Electrical and Magnetoelectric Properties of Particulate Composites and Laminated Trilayered Thick‐Film Composites

Bhavana¹,

Begum²,

Bellad³

2023

Physica Status Solidi (a)

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Hydraulic pressing and screen printing methods are used to create particulate magnetoelectric composites and laminated trilayered thick‐film composites. X‐ray diffraction studies reveal the presence of cubic spinel and tetragonal perovskite structures for individual powders of ferrite CuFe2O4 and ferroelectric‐phase PbZr0.58Ti0.42O3. The dielectric constant of particulate composites decreases with increasing frequency around 1 MHz and beyond that frequency, a saturation state is attained. However, for laminated films, the dielectric constant decreases up to 1 MHz and then increases. The maximum dielectric constant at low frequency for particulate CuFe2O4/PZT composites is around 72.2, whereas for laminated CuFe2O4/PZT/CuFe2O4 composites it is 4.97 and for PZT/CuFe2O4/PZT composites is 5.24. Loss tangent exhibits the same trend as dielectric constant with frequency, which is explained by space charge polarization and is consistent with Koop's phenomenological theory. The dielectric constant's variation with temperature describes the contribution of electric dipoles to polarization and both composites exhibit absorption peaks. The semiconducting nature of both particulate and laminated composites can be seen in the DC resistivity graph with frequency and as frequency increases, DC resistivity decreases for both composites, which is explained by the small polaron‐hopping phenomenon. The magnetoelectric coupling effect for particulate composites (44 mV Oe−1cm−1) is also found to be small when compared to laminated trilayered composites (CuFe2O4/PZT/CuFe2O4—105 mV Oe−1cm−1 and PZT/CuFe2O4/PZT—68 mV Oe−1cm−1).

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