Microstructure study and hyper frequency electromagnetic characterization of novel hexagonal compounds

The physical characteristics and preparation of novel Z-type hexagonal compound, which have iron deficient composition of Ba3Co2(0.8−x)Cu0.4Zn2xFe23.5O41 <f>(x≤0.30),</f> was investigated. The results show that Zn has little effect on the morphology of compact and homogeneous ferrites with average 10–15 μm of lathy grain size, but make the formation temperature range narrow. In the range of Zn incorporation, the hexagonal cell lattice parameters (a and c) of ferrites reserve stable. However, the key magnetic and electrical properties, such as initial permeability, quality factor, resistivity, dielectric constant and magnetic hysteresis as well as Curie temperature were also characterized. The mechanisms involving in generating these variations were also discussed in this paper. [Copyright &y& Elsevier]