%A Thi Anh Ho
%A Phong P.T.
%A Thoan N.H.
%A Thi Minh Hong Nguyen
%A Hao N.V.
%A Ha L.T.
%A Bach T.N.
%A Thanh T.D.
%A Xuan C.T.A.
%A Quang N.V.
%A Dang N.V.
%A Tho P.T.
%J Journal of Alloys and Compounds
%T Structural transition, electrical and magnetic properties of Cr doped Bi0.9Sm0.1FeO3 multiferroics
%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.
%P 152245-1
%V 813
%D 2020
%L SisLab3631