Correlation between chemical composition, electrical, magnetic and microwave properties in Dy-substituted Ni-Cu-Zn ferrites

Enhancement of Magnetic and Dielectric Properties of Ni0.25Cu0.25Zn0.50Fe2O4 Magnetic Nanoparticles through Non-Thermal Microwave Plasma Treatment for High-Frequency and Energy Storage Applications

“…XRD intensity peaks were reported at 2θ of 30.03°, 35.35°, 36.96°, 42.94°, 53.29°, 56.79°, 62.31°, and 73.76°, which are attributed to (220), (311), (222), (400), (422), (511), and (440) hkl planes, respectively, mentioned in Figure 3 . These hkl planes indicated the growth of pure fcc spinel structures of NiCuZn ferrite and obtained peaks agreed with the previously reported literature [ 30 ]. Obtained XRD patterns also endorsed the statement that the sol–gel auto-ignition technique is favorable for synthesizing spinel ferrites using described conditions [ 31 ].…”

Combined Effect of Microstructure, Surface Energy, and Adhesion Force on the Friction of PVA/Ferrite Spinel Nanocomposites

“…Spinel ferrites are a hybrid functional material with the general formula MFe 2 O 4 (M = Mg 2+ , Co 2+ , Mn 2+ , Ni 2+ , Zn 2+ ) [2][3][4]. Ferrites are essential for many recent technological designs of electrical, magnetic, and microwave devices [5][6][7]. The properties of ferrites are influenced by the method of synthesis, the composition, the microstructure features, and the distribution of cations in the tetrahedral and octahedral sites in the lattice of the ferrite [8][9][10].…”

Unusual semiconductor–metal–semiconductor transitions in magnetite Fe3O4 nanoparticles

“…The fundamental requirements for such applications are the creation of so ferrimagnetic characteristics at room temperature, high electrical conductivity, reduced eddy current loss, and chemical stability. 6 Several studies have been published on the magnetic and electrical properties of different Fe 12 From these studies, we found that the magnetic exchange interactions and charge carriers hopping mechanism in these ferrites are considerably inuenced by the cation distribution, surface spin structure, interparticle interactions, magnetocrystalline anisotropy and surface morphology. However, to understand the mechanism of semiconductor to metal transition (SMT) at higher temperature in the spinel ferrites, different concepts have been presented.…”

“…6 Several studies have been published on the magnetic and electrical properties of different Fe 3 O 4 derived compounds such as CoFe 2 O 4 , 7 MnFe 2 O 4 , 8 Co 1.25 Fe 1.75 O 4 , 9 Ni 1− x Zn x Fe 2 O 4 , 10 Mg 0.5 Co 0.5 Fe 2 O 4 , 11 and Ni 0.4 Cu 0.2 Zn 0.4 Fe 2− x Dy x O 4 spinel ferrite nanoparticles. 12 From these studies, we found that the magnetic exchange interactions and charge carriers hopping mechanism in these ferrites are considerably influenced by the cation distribution, surface spin structure, interparticle interactions, magnetocrystalline anisotropy and surface morphology. However, to understand the mechanism of semiconductor to metal transition (SMT) at higher temperature in the spinel ferrites, different concepts have been presented.…”