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

Autor: H.T. Anh, P.D. Thang, N.D. Co, D.T. Khan, Q.V. Dong, The-Long Phan, Bo Wha Lee, Dang Duc Dung, N. T. Dang, T.V. Manh
Rok vydání: 2022
Předmět:
Zdroj: Journal of Magnetism and Magnetic Materials. 544:168648
ISSN: 0304-8853
Popis: 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.
Databáze: OpenAIRE