Samples examined in this experimental work were in the form of hexagonal barium ferrite with various temperatures annealing. Barium hexaferrite (BaFe12O19), is of great importance as permanent magnets, particularly for magnetic recording as well as in microwave devices. The variation of the temperatures annealing was found to affect coercivity, mean effective anisotropy field, magnetic viscosit...

Abstract Due to their outstanding dielectric and magnetic properties, hexaferrites are attracting ever-increasing attention for developing electronic components of next-generation communication systems. The complex crystal structure the critical dependences electric properties on external factors, such as magnetic/electric fields, pressure, doping, open ample opportunities targeted tuning these...

A study on radiation losses in conducting polymer nanocomposites, namely La-Co-substituted barium hexaferrite and polyaniline, is presented. The study was performed by means of a vector network analyser, X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, electron spin resonance spectroscopy and a vibrating sample magnetometer. It is found that the maxi...

Barium hexaferrite (BaHF) with the chemical formula BaFe12O19 is a hard magnetic material and has high magnetic anisotropy field (MAF), 17 kOe. The easy direction of magnetization corresponds to the crystallographic c-axis and BaHF particles orient in this direction when are exposed to an external magnetic field. Because of the high MAF, a ferromagnetic resonant frequency appears from 45 to 50 ...

Neuroevolutionary models are used to predict magnetic hysteresis for barium hexaferrites (to hexaferrites). Magnetic a specific set of samples hexaferrite doped with titanium were measured experimentally at room temperature and reported before. Neural networks trained using these experimental data in order generate magnetization various concentrations titanum. We present the prediction methods ...