Deng Jianming, Farid Muhammad Asim, Zhang Meng, Yang Aimei, Zhang Hongxing, Zhang Hao, Tian Gengfang, Wu Meimei, Liu Laijun, Sun Junliang, Li Guobao, Liao Fuhui, Lin Jianhua
College of Materials Science and Engineering, Guilin University of Technology , Guilin 541004, People's Republic of Chinaa.
Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, People's Republic of China.
Inorg Chem. 2017 Mar 20;56(6):3475-3482. doi: 10.1021/acs.inorgchem.6b03024. Epub 2017 Feb 27.
Copper-doped (TbMn)MnO has been synthesized by the conventional solid state reaction method. X-ray, neutron, and electron diffraction data indicate that they crystallize in Pnma space group at room temperature. Two magnetic orderings are found for this series by neutron diffraction. One is the ICAM (incommensurate canted antiferromagnetic) ordering of Mn with a wave vector q = (∼0.283, 0, 0) with a ≈ 5.73 Å, b ≈ 5.31 Å, and c ≈ 7.41 Å, and the other is the CAM (canted antiferromagnetic) ordering of both Tb and Mn in the magnetic space group Pn'a2' with a ≈ 5.73 Å, b ≈ 5.31 Å, and c ≈ 7.41 Å. A dielectric peak around 40 K is found for the samples doped with Cu, which is higher than that for orthorhombic TbMnO.
