BIO Web Conf.
Volume 84, 2024International Scientific and Practical Conference “Development and Modern Problems of Aquaculture” (AQUACULTURE 2023)
|Number of page(s)
|Environmental Protection Engineering
|05 January 2024
Crystal structure and magnetic properties ferrites Ba-Fe-O, Bi-Fe-O, synthesized in NGO “Physics-Sun”
1 Institute of Materials Science of the Academy of Sciences, Tashkent, Republic of Uzbekistan
2 Fergana Polytechnic Institute, Fergana, Republic of Uzbekistan
* Corresponding author: email@example.com
Alloys based on Ba-Fe-O have been synthesized in a large solar furnace NGO “Physics-Sun”. The obtained barium hex ferrite with magnetic characteristics suitable for solving technical problems for the manufacture of protective coatings. The experimentally observed increase in the specific magnetization of BiFe0.75Ni0.25O3 with respect to the data obtained in nominally pure bismuth ferrite is associated both with the suppression of the cycloidal spin structure due to the partial substitution of nickel cations for iron cations and with the establishment of ferromagnetic exchange interaction between neighboring Fe3+ and Ni3+ ions. The results of ab initio (LSDA + U approximation of the DFT method) calculations of the band structure suggest that in the ground state BiFe0.75Ni0.25O3 is a semiconductor with a band gap of 1.94 eV.
© The Authors, published by EDP Sciences, 2024
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