Room-Temperature Magnetism Realized by Doping Fe into Ferroelectric LiTaO3

We synthesize LiTal-x FexO3-σ （LTFO） remain single phase up to x = 0.09 ceramics by the conventional solid-state reaction method. The samples The magnetic measurements show that the doping of Fe successfully realizes ferromagnetism of LTFO at room temperature. The dielectric measurements indicate th...

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Published in中国物理快报：英文版 no. 1; pp. 161 - 164
Main Author 宋英杰 张庆华 沈希 倪晓东 姚湲 禹日成
Format Journal Article
LanguageEnglish
Published 2014
Subjects
Fe含量
固相反应法
室温
居里温度
掺杂
磁性测量
钽酸锂
铁电体
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Summary:We synthesize LiTal-x FexO3-σ （LTFO） remain single phase up to x = 0.09 ceramics by the conventional solid-state reaction method. The samples 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.
Bibliography:11-1959/O4
We synthesize LiTal-x FexO3-σ （LTFO） remain single phase up to x = 0.09 ceramics by the conventional solid-state reaction method. The samples 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.
SONG Ying-Jie, ZHANG Qing-Hua, SHEN Xi, NI Xiao-Dong, YAO Yuan, YU Ri-Cheng（ 1 Department of Physics, University of Science and Technology Beijing, Beijing 100083 2 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190）
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/1/017501