Akademik Məlumat İdarəetmə Sistemi
Modern Physics Letters B, vol.34, no.35, 2020 (SCI-Expanded, Scopus)
The crystal structure and luminescent properties of Al-substituted BaFe12O19 were studied. It was found that under normal conditions, the samples are characterized by the space group P63mmc. Depending on the ionic radii of the Al and Fe atoms and the concentration of Al atoms, a decrease in the distance between the atoms in the crystal structure and the lattice parameters was observed. BaFe12-xAlxO19 crystals (x = 0.1-1.2) were excited by a laser with a wavelength of 375 nm and 435 nm, to study their luminescent features. From the information obtained from luminescent spectrum, it is seen that with the replacement of magnetic Fe3+ ions by diamagnetic Al3+ ions, the intensity of the spectra increases. During exciting by a laser with a wavelength of 435 nm, anti-Stokes luminescence is observed in the ultraviolet region.