Effect of Cu substitution on the magnetic and electrical properties of Ni–Zn ferrite synthesised by soft chemical method

Effects of Li2O additive on structural, magnetic and electrical properties of Ni-Mg ferrite

“…Zaag et al (1996) reported that particles larger than ~ 3 μm having multi-domain wall motion, made a contribution to the permeability. The density is also one of the most important factors leading to the high permeability, because pores inhibit the domain wall mobility and cause the demagnetization field (Shrotri et al 1999). Thus, a densely sintered microstructure is essential for high permeability.…”

Effect of Sn (Tin) Alloying on Ni-Zn Ferrites Characteristics

“…The permeability of magnetic ferrites is dependent on the concentration with Sn contents. Increasing density of ferrites responsible for reducing the demagnetization field but also raise the spin rotational contribution, which in turn increases the permeability [19].…”

Effect of Sintering Time on the Structural, Magnetic and Electrical Transport Properties of Mg<sub>0.35</sub>Cu<sub>0.20</sub>Zn<sub>0.45</sub>Fe<sub>1.94</sub>O<sub>4</sub> Ferrites

“…This is because bigger grains tend to contain more number of larger domain walls and initial permeability being a result of the easy reversal of domain wall displacement in the direction of the applied magnetic field. An increase in the density of ferrites not only results in the reduction of demagnetizing field, due to the presence of pores, but also increases the spin rotational contribution, which in turn increases the permeability [20]. Increase in grain size results in an increase in the number of domain walls in each grain.…”