Structural, magnetic and electric properties of Sr0.95Y0.05Fe12-xZrxO19 (x = 0–2) M−type hexaferrites

• Published in: Journal of magnetism and magnetic materials 2022-02, Vol.544, p.168648, Article 168648
• Main Authors: Thang, P.D., Co, N.D., Anh, H.T., Dung, D.D., Dong, Q.V., Manh, T.V., Lee, B.W., Phan, T.L., Dang, N.T., Khan, D.T.
• Format: Article
• Language: English
• Subjects: Astronomy; Crystallographic structure; Electric polarization; Electric properties; Electrical properties; Ferrite; Ferroelectric materials; Ferroelectricity; Magnetic and electric properties; Magnetic properties; M−type hexaferrites; X ray absorption; Zirconium
• ISSN: 0304-8853; 1873-4766
• DOI: 10.1016/j.jmmm.2021.168648

•Structural, magnetic and electric properties of Sr0.95Y0.05Fe12-xZrxO19 M−type hexaferrites.•Hard-magnetic and electric polarization behaviors change as increasing Zr-doping content.•Co-presence of Fe2 + and Fe3 + ions in M−type hexaferrites. 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.