Sosnowska, Izabela Azuma, Masaki Przeniosło, Radosław Wardecki, Dariusz Chen, Wei-tin Oka, Kengo Shimakawa, Yuichi Crystal and Magnetic Structure in Co-Substituted BiFeO<sub>3</sub> Ultra-high-resolution neutron diffraction studies of BiFe<sub>0.8</sub>Co<sub>0.2</sub>O<sub>3</sub> show a transition from a cycloidal space modulated spin structure at <i>T </i>= 10 K to a collinear G-type antiferromagnetic structure at <i>T </i>= 120 K. The model of antiparallel directions of Fe<sup>3+</sup> and Co<sup>3+</sup> magnetic moments at the shared Wyckoff position describes well the observed neutron diffraction intensities. On heating above RT, the crystal structure of BiFe<sub>0.8</sub>Co<sub>0.2</sub>O<sub>3</sub> changes from a rhombohedral <i>R</i>3<i>c</i> to a monoclinic <i>Cm</i>. At 573 K only the <i>Cm</i> phase is present. The collinear C-type antiferromagnetic structure is present in the <i>Cm</i> phase of BiFe<sub>0.8</sub>Co<sub>0.2</sub>O<sub>3</sub> at RT after annealing. Cm phase;neutron diffraction intensities;RT;BiFe 0.8Co show;rhombohedral R 3c;antiferromagnetic;collinear;crystal;BiFe 0.8Co changes 2013-11-18
    https://acs.figshare.com/articles/dataset/Crystal_and_Magnetic_Structure_in_Co_Substituted_BiFeO_sub_3_sub_/2352382
10.1021/ic402427q.s002