Electrical conduction and magnetoelectric effect in Ni0.50 Co0.50 Fe2O4 + Ba0.8 Pb0.2TiO3 composites

Structural, dielectric and magnetoelectric effect in (x)BaTiO3+ (1 −x)Ni0.93Co0.02Mn0.05Fe2O4 ME composites

“…It is observed that resistivity is maximum for ferroelectric and minimum for ferrite phase. The resistivity of the composites decreases with increase in ferrite content [12]. A control on connectivity of ferrite phase is also significant while preparing the mixture of two phases.…”

Electrical properties of xNiFe2O4+(1−x)Ba0.7Sr0.3TiO3 composites

“…It is attributed to different types of polarizations (electronic, atomic, interfacial, ionic, etc.). At higher frequencies it arises due to the electronic polarization [9]. In case of composites, the high value of dielectric constant is ascribed to the fact that ferroelectric regions are surrounded by non-ferroelectric (ferrite) regions similar to the case relaxor ferroelectrics [10], this gives rise to interfacial polarization.…”

Magnetoelectric effect and electrical properties in BTO+Ni0.93Co0.02Cu0.05Fe2O4 particulate composites

“…In present work we have chosen nickel-copper-cobalt ferrite, which is highly resistive and magnetostrictive [9,10]. Van Uitert has showed that large increase in room temperature resistivity of nickel ferrite can be achieved by substituting one or two percent of cobalt ions [11].…”