%0 Journal Article
%@ 0925-8388
%A Ho, Thi Anh
%A P.T., Phong
%A N.H., Thoan
%A Nguyen, Thi Minh Hong
%A N.V., Hao
%A L.T., Ha
%A T.N., Bach
%A T.D., Thanh
%A C.T.A., Xuan
%A N.V., Quang
%A N.V., Dang
%A P.T., Tho
%D 2020
%F SisLab:3631
%J Journal of Alloys and Compounds
%P 152245-1
%T Structural transition, electrical and magnetic properties of Cr doped Bi0.9Sm0.1FeO3 multiferroics
%U https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3631/
%V 813
%X The structural, vibrational, electrical and magnetic properties of Bi0.9Sm0.1Fe1-xCrxO3 (0.02 x 0.1) ceramics have been investigated in the vicinity of the morphotropic phase boundary (MPB) between the rhombohedral and orthorhombic structures. X-ray diffraction (XRD) patterns reveal a gradual formation of the orthorhombic phase and Bi14CrO24 impurity with increasing chromium concentration. The Riet- veld refinement and Raman scattering analysis confirm the structural transformation from the polar R3c to the anti-polar Pnam phases. The Cole-Cole plots show two relaxation regimes which are attributed to gain and grain boundary responses above room temperature. The slim magnetic hysteresis loops are observed in samples with x 1⁄4 0.02e0.08, while a robust loop with the coercivity field of Hc z 1200 Oe is observed for x 1⁄4 0.1 sample where the canted antiferromagnetic phase is significantly contributed to the total magnetization. This result approves that the cycloidal spin structure cannot be suppressed by Cr doping.