Structural and magnetic properties of Sn–Zn doped BaCo2Z-type hexaferrite powders prepared by citrate precursor method

Low loss Co2Z hexaferrite with matched permeability and permittivity in HF and VHF bands

“…With the increase of SnO 2 content, the majority of peaks were related to Co 2 Z-type phase with a minor Co 2 W-type phase. The main reason led to the appearance of Co 2 W phase was due to that some Sn 4 þ ions might enter into the crystal lattice and substitute the major Fe 3 þ ions [11]. The surplus Fe 3 þ ions induced the formation of Co 2 W-type phase, which had a higher ratio of n n (Fe )/ (M ) 3 2 + + (M ¼Ba, Co) than that of Co 2 Z-type phase.…”

Structural and Magnetic Properties of Ba3[Cu0.8−xZnxMn0.2]2Fe24O41 Z‐Type Hexaferrites

“…e preferred site for Cu 2+ ion is the tetrahedral site, while that for the Mn 2+ ion is the octahedral site [52]. e Zn 2+ ion generally prefers to occupy 4f IV tetrahedral site, with some tendency to enter the 4f VI octahedral site due to the large ionic diameter (0.74Å) [53]. e saturation magnetization M s for the sample with x � 0.0 was found to be 45 emu/g, which is close to the value of 46 emu/g reported for Cu 2 Z hexaferrite [48].…”

Nanostructured ZnO photocatalysts prepared via surfactant assisted Co-Precipitation method achieving enhanced photocatalytic activity for the degradation of methylene blue dyes

“…If the complexion transition propagated faster than the growing grains, then all grains would eventually have high mobility boundaries. However, because the boundaries around the distant grains remain in a higher energy complexion, the rate of propagation must be low [36,37]. Selectedarea diffraction (SAED) indicates that the ZnO nanoparticles either without or with additives were well crystallized with small average particle sizes.…”