Электронный каталог

Статья

Agayev, F.G.
Crystal Structure, Magnetic Properties and Thermal Behavior of BaFe&sub(11.9)In&sub(0.1)O&sub(19) Ferrite / F.G.Agayev, M.N.Mirzayev, [a.o.] // Physica status solidi (b) [Electronic resource]. – 2022. – Vol.259, No.10. – p.2100655. – URL: https://doi.org/10.1002/pssb.202100655. – Bibliogr.:52.

Herein, the crystal structure, surface morphology, and magnetic and thermal properties of the BaFe&sub(11.9)In&sub(0.1)O&sub(19)-substituted M-type hexaferrite are investigated. This solid solution is fabricated using “two-step” topotactic reactions. It is determined through the X-ray diffraction method that the crystal structure of this solid solution under normal conditions has hexagonal symmetry with P63/mmc space group (No. 194) with the unit cell parameters a = 5.8992(1) Å and c = 23.2275(7) Å. It is determined by the scanning electron microscope (SEM) researches that the average size of the grains is  d^- = 6 μm. It is determined by the vibration magnetometry that the ferrimagnet–paramagnet phase transition happens at around T&sub(C) = 420 °C. Using differential scanning calorimetry (DSC), it is found that air and water molecules leave the sample surface up to 420 °C and the resulting oxygen anions appearing as a result of a solvothermal reaction fill the oxygen vacancies in the crystal structure at high temperatures up to 800 °C. The thermal transitions repeated in the high temperatures are established. The oxidation behavior of this compound is determined from thermogravimetric analysis (TGA) in a wide temperature range.



ОИЯИ = ОИЯИ (JINR)2022
Спец.(статьи,препринты) = С 332.8 - Синхротронное излучение. Лазеры на свободных электронах. Получение и использование рентгеновских лучей
Бюллетени = 01/023