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Structural, dielectric properties and AC conductivity of Ni(1−x)ZnxFe2O4 spinel ferrites

“…The linearity of AC conductivity plot indicating that the conduction occurs by hopping of small polaron type of charge carriers among the localized states. At higher frequencies, where conductivity is increased greatly with frequency, the transport is dominated by contributions from hopping of infinite clusters [30]. Fig.…”

Microwave assisted synthesis and characterization of Co doped Cu ferrite nanoparticles

“…It has been found that conductivity is an increasing function of frequency in case of conduction by hopping and a decreasing function of frequency in case of band conduction. Generally, the total conductivity is the summation of the band and hopping conduction [40]: r tot ¼ r 0 ðTÞ þ rðx; TÞ ð 6Þ…”

Response of dielectric behavior and magnetoelectric effect in ferroelectric rich (x) Ni0.9Zn0.1Fe2O4+(1−x)PZT ME composites

“…Composites containing ferrite and ferroelectric phases are called magnetoelectric composites (ME). The magnetoelectric effect is defined as the variation of dielectric polarization in a system as a response to an applied magnetic field, or an induced magnetization by an external electric field [1,2]. With this effect, an effective conversion between electric energy and magnetic energy becomes possible.…”