Электронный каталог

Статья

Abiyev, A.S.
Impact of Ni Substitution on the Structural and Magnetic Characteristics of SrFe&sub(12-x)Ni&sub(x)O&sub(19) (x = 0 – 0.3) / A.S.Abiyev, K.M.Hasanov, S.V.Sumnikov, V.A.Turchenko, [a.o.]. – Text : electronic // Ceramics International. – 2026. – Vol. 52, No. 14, Pt. B. – P. 25642-25651. – URL: https://doi.org/10.1016/j.ceramint.2026.04.106. – Bibliogr.: 56.

In this study, the structural and magnetic properties of Ni-substituted M-type hexaferrites with the composition SrFe&sub(12-x)Ni&sub(x)O&sub(19) (x = 0.0–0.3) were investigated by neutron diffraction, scanning electron microscopy (SEM), and magnetic measurements. Rietveld refinement of the diffraction data revealed that Ni ions substitute Fe&sup(3+) ions at the 12k Wyckoff sites, leading to a monotonic decrease in unit cell parameters and volume, while the hexagonal structure (space group P6&sub(3)/mmc) is preserved. SEM analysis showed a reduction in average crystallite size with increasing Ni concentration. Magnetic hysteresis measurements and Curie temperature analysis indicated a gradual decline in saturation magnetization and thermal stability due to weakening of Fe–O–Fe exchange interactions. These results demonstrate the structural sensitivity and magnetic response of SrFe&sub(12)O&sub(19) to partial Ni substitution.



Спец.(статьи,препринты) = С 350 - Приложения методов ядерной физики в смежных областях
Спец.(статьи,препринты) = С 342 г1 - Замедление и диффузия нейтронов. Дифракция
ОИЯИ = ОИЯИ (JINR)2026