Room-Temperature Magnetism Realized by Doping Fe into Ferroelectric LiTaO3  

作　　者：宋英杰 张庆华 沈希 倪晓东 姚湲 禹日成 

机构地区：[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

出　　处：《Chinese Physics Letters》2014年第1期161-164,共4页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program of China under Grant No 2012CB932302, and the National Natural Science Foundation of China under Grant No 11174336.

摘　　要：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.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.

分 类 号：O482.523[理学—固体物理] TM221[理学—物理]