Room-Temperature Magnetism Realized by Doping Fe into Ferroelectric LiTaO3
SONG Ying-Jie1,2, ZHANG Qing-Hua2, SHEN Xi2, NI Xiao-Dong1**, YAO Yuan2, YU Ri-Cheng2**
1Department of Physics, University of Science and Technology Beijing, Beijing 100083 2Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190
Abstract：We synthesize LiTa1?xFexO3?σ (LTFO) ceramics by the conventional solid-state reaction method. The samples remain single phase up to x=0.09. The magnetic measurements show that the doping of Fe successfully realizes ferromagnetism of LTFO at room temperature. The dielectric measurements indicate that LTFO is ferroelectric, similarly to LiTaO3 (LTO), but its ferroelectric Curie temperature seems to decrease with the increasing Fe content. By means of doping Fe ions into LTO, the coexistence of spontaneous electric polarization and spontaneous magnetic moment is realized at room temperature.
(Applications of density-functional theory (e.g., to electronic structure and stability; defect formation; dielectric properties, susceptibilities; viscoelastic coefficients; Rydberg transition frequencies))
引用本文:
. [J]. 中国物理快报, 2014, 31(1): 17501-017501.
SONG Ying-Jie, ZHANG Qing-Hua, SHEN Xi, NI Xiao-Dong, YAO Yuan, YU Ri-Cheng. Room-Temperature Magnetism Realized by Doping Fe into Ferroelectric LiTaO3. Chin. Phys. Lett., 2014, 31(1): 17501-017501.
2014, Vol. 31 
