Linear and quadratic magnetoelectric effect in CNMFO:PZT magnetoelectric composite

Chougule, P. K.; Kolekar, Y. D.; Bhosale, C.H.

doi:10.1007/s10854-013-1329-5

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2021

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“…Change in cation distribution also affects the resistivity of ferrite phase [5]. Increase or decrease in resistivity of ferrite phase affects ME coe cient drastically [6]. Also, development and discharge of charges during ME coe cient measurement is still unrevealed.…”

Section: Introductionmentioning

confidence: 99%

Effect of Polaron Hoping on Electrical Properties of Magneto Electric Composites

Ramteke¹,

Chougule²

2021

Preprint

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Co0.7-xNixMn0.3Fe2O4 (CNMFO) ferrites with x = 0.00, 0.05, 0.10 and 0.15,PbZr0.52Ti0.48O3(PZT) ferroelectric and 30% CNMFO – 70% PZT magneto electric(ME) composites were synthesized by double sintering ceramic method. XRD confirms pure phase formation for all compositions of ferrite, ferroelectric and ME composites. All compositions of ferrites, ferroelectric and ME composites show negative temperature coefficient of resistance (NTCR) confirming the semiconducting behavior, though the conduction mechanism is quite different than known semiconductors such as, silicon and germanium. The conduction, due to electron hoping in semiconductors against polaron hoping in ferrites is explained. The effect of cation distribution on resistivity of ferrite phase is also discussed. Thus, effect of polaron hoping and cation distribution on resistivity and dielectric constant of ferroelectric and ME composites has been discussed. Effective resistance of ME composites due to combined resistance of the constituent phases has also been studied.

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Section: Introductionmentioning

confidence: 99%