10.1021/ic402427q.s002
Izabela Sosnowska
Izabela
Sosnowska
Masaki Azuma
Masaki
Azuma
Radosław Przeniosło
Radosław
Przeniosło
Dariusz Wardecki
Dariusz
Wardecki
Wei-tin Chen
Wei-tin
Chen
Kengo Oka
Kengo
Oka
Yuichi Shimakawa
Yuichi
Shimakawa
Crystal
and Magnetic Structure in Co-Substituted BiFeO<sub>3</sub>
American Chemical Society
2013
Cm phase
neutron diffraction intensities
RT
BiFe 0.8Co show
rhombohedral R 3c
antiferromagnetic
collinear
crystal
BiFe 0.8Co changes
2013-11-18 00:00:00
Dataset
https://acs.figshare.com/articles/dataset/Crystal_and_Magnetic_Structure_in_Co_Substituted_BiFeO_sub_3_sub_/2352382
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.