Structural transition and magnetic properties of Mn doped Bi_0.88Sm_0.12FeO₃ ceramics.

ABSTRACT: We investigated the effects of Mn doping on the crystal structure, phonon vibration, and magnetic properties of Bi_0.88Sm_0.12FeO₃ ceramics. Mn doping effectively modified the rhombohedral symmetry and induced a structural transition from an R3c rhombohedral to Pnam orthorhombic structure. Magnetic measurements revealed a weak ferromagnetic behavior, which was related to the canted antiferromagnetic order of the Pnam structure. The cycloidal spin structure of the R3c phase could not be suppressed by substitution of Mn at the Fe site. Studies on the self-phase transition and electric field-induced structural transition revealed many changes in coercivity and remanent magnetization, which are believed to originate from

SUBMITTER: Hien NT 

PROVIDER: S-EPMC9050850 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature