Search academic texts

Information × Registration Number 0200U003469, 0197U016510 , R & D reports Title The investigation of anisotropic magnetic and NMR-characteristics of the substitution anisotropic of H-type ferrites popup.stage_title Head Kuntsevych S., Registration Date 15-05-2000 Organization Kharkov National University named after V.N. Karazin popup.description2 Ferrites of systems of substitution were synthesized by method of growing on revolving seed solution in melt, their attestation has been carried out, saturation magnetization, field and energy of magnetic crystallographyc anisotropy were measured, NMR-spectrums of Fe-niclei were investigated in temperature range 4,2-295 K. The results of investigation of relaxation properties of Fe-nuclei in system of substitution indicate, that Fe-ions substitution by Al-ions does not bringe to the appearance of ions with strong spin-lattice interaction. The increase of anisotropy field quantity in this system is caused by sulattice investments of different signs to the energy anisotropy constant. Dipole-dipole sublattice investments to energy anisotropy constant of hexaferrite were calculated. It was shown, that Fe-ions at 12 K positions bring determinative investment to energy anisotropy constant. Product Description popup.authors popup.nrat_date 2020-04-03 Close