Structural, Magnetic and Electric Properties of Sr0.95Y0.05Fe12-xZrxO19 (x = 0–2) M−type Hexaferrites

P. D. Thang, N. D. Co, H. T. Anh,D. D. Dung, Q. V. Dong,T. V. Manh,B. W. Lee,T. L. Phan,N. T. Dang,D. T. Khan

Journal of Magnetism and Magnetic Materials（2022）

Cited 12|Views21

Abstract

The ceramic technique has been utilized to fabricate Sr0.95Y0.05Fe12-xZrxO19 (x = 0-2) samples. Structural and Raman-scattering analyses have revealed that the samples with x = 0 and 0.5 possess the M-type hexagonal-ferrite phase, while the others have the additional Zr-related phase. All samples exhibit the hard-magnetic behavior and the magnetic parameters tend to decrease with increasing Zr-doping content. The study on the electric polarization has indicated that the sample with x = 0 shows the coexistence of paraelectric and weak ferroelectric behaviors, while the other samples (x = 0.5-2) show conductive behaviour with nearly circular loops. The changes in the magnetic and electrical properties mainly related to the co-presence of Fe2+ and Fe3+ ions, as evidenced from analyzing X ray absorption data.

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Key words

M-type hexaferrites,Crystallographic structure,Magnetic and electric properties

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