Impacts of MnZn doping on the structural and magnetic properties of M-type SrCaLa hexaferrites

• Published in: Applied physics. A, Materials science & processing Materials science & processing, 2017-05, Vol.123 (5), p.1-7, Article 309
• Main Authors: Yang, Yujie, Shao, Juxiang, Wang, Fanhou, Liu, Xiansong, Huang, Duohui
• Format: Article
• Language: English
• Subjects: Applied physics; Characterization and Evaluation of Materials; Chemical composition; Coercivity; Condensed Matter Physics; Crystal structure; Hysteresis loops; Machines; Magnetic properties; Magnetization; Manufacturing; Materials science; Nanotechnology; Optical and Electronic Materials; Physical properties; Physics; Physics and Astronomy; Processes; Surfaces and Interfaces; Thin Films
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-017-0950-1

M-type hexaferrites with chemical compositions of Sr 0.5 Ca 0.2 La 0.3 Fe 12.0−2 x (MnZn) x O 19 (0.0 ≤  x  ≤ 0.5) were synthesized by the traditional ceramic method. The crystal structure of M-type hexaferrite samples was examined by X-ray diffraction. The structural analyses reveal that all samples are in single M-type hexagonal phase and no secondary phase is present. A physical property measurement system-vibrating sample magnetometer was used to measure the magnetic properties of M-type hexaferrite samples. The saturation magnetization ( M s ), remanent magnetization ( M r ) and coercivity ( H c ) were calculated from magnetic hysteresis loops. M s first increases with MnZn content ( x ) from 0.0 to 0.1, and then decreases with MnZn content ( x ) from 0.1 to 0.5. While, M r decreases with MnZn content ( x ) from 0.0 to 0.2, and then increases with MnZn content ( x ) from 0.2 to 0.5. H c first decreases with MnZn content ( x ) from 0.0 to 0.2, and then increase with MnZn content ( x ) from 0.2 to 0.5.