STUDY OF SUBSTITUTION OF Fe3+ IONS IN BaFe12O19 CRYSTAL BY Co2+-Ti4+ AND Cu2+-Nb5+ IONS | Zendy

Jizhe Liu | Zendy; LU MU | Zendy; Shiying Han | Zendy; Hongru Zhai | Zendy

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STUDY OF SUBSTITUTION OF Fe3+ IONS IN BaFe12O19 CRYSTAL BY Co2+-Ti4+ AND Cu2+-Nb5+ IONS

Author(s) -

Jizhe Liu,

LU MU,

Shiying Han,

Hongru Zhai

Publication year - 1983

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.32.1369

Subject(s) - ion , materials science , hexagonal crystal system , ferrite (magnet) , crystallography , substitution (logic) , anisotropy , magnetocrystalline anisotropy , crystal structure , single crystal , magnetization , analytical chemistry (journal) , magnetic anisotropy , chemistry , physics , optics , magnetic field , organic chemistry , computer science , programming language , chromatography , quantum mechanics , composite material

In this paper, we studied the substitution of Fe3+ ions in BaFe12O19 crystal by Co2+-Ti4+ and Cu2+-Nb5+ ions. Two systems of single cry stals of BaFe12-2xCoxTixO19(with x=0, 0.04, 0.09, 0.13, 0.27, 0.68) and BaFe12-x(Nb1/3Cu2/3)xO19(with x = 0, 0.28, 0.44, 0.60) were grown from Bi2O3 melts. Magnetization a and anisotropy constant K1 of the above samples were measured in the temperature range of 100-300K. For the substitution with Co2+-Ti4+ ions, it was found that when x = 0.09 σ and K1 increased slightly with x at the beginning and decreased rapidly when x > 0.09 until K1→ O at x≈ 1.1. In the case of substitutions with Cu2+-Nb5+, the σ value was nearly the same in the studied compositions and showed a slightly increasing trend with increasing x; while K1 decreased monotonously with x. Our results were qualitatively discussed with the model of site occupation of substitution ions in the M-type hexagonal ferrite.

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