文献类型：期刊文献

英文题名：A study on the magnetic and photoluminescence properties of Eun+ and Sm3+ doped Fe3O4 nanoparticles

作者：Huan, Weiwei[1]; Cheng, Chao[2]; Yang, Yuxiang[1]; Yuan, Hongming[3]; Li, Yongxia[1]

机构：[1] School of Chemistry and Molecular Engineering, East China University of Science and Technology, 200237, China; [2] Department of Nuclear Medicine, Changhai Hospital, Second Military Medical University, 200433, China; [3] State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China

年份：2012

卷号：12

期号：6

起止页码：4321

外文期刊名：Journal of Nanoscience and Nanotechnology

收录：EI(收录号：20123015269447)

语种：英文

外文关键词：Chlorine compounds - Magnetic properties - Rietveld analysis - Magnetite - Nanomagnetics - Samarium compounds - Samarium - Saturation magnetization - Europium

摘要：In this paper, Eun+Sm3+ doped Fe3O 4 nanoparticles were prepared via solvothermal method, in which Ferric chloride is used as the iron source, and anhydrous EuCl3, SmCl3 as doping source. Eu, Sm valence in doped Fe3O4 nanoparticles, and effects of Eu, Sm doping amount on their structure, morphology, magnetic properties and PL properties were discussed. The results show, the Eu ions had doped Fe3O4 nanoparticles in the mixed-valence state, when the Eu and Sm doping amount were increased, the doped Fe3O 4 nanoparticles changed from hollow nanospheres into spherical particles, and finally changed into uniform cube-shaped particles with 13 nm in diameter. Moreover, the doping sites for doping ions in doped Fe 3O4 nanoparticles were discussed from Rietveld analysis of XRD pattern of the doped Fe3O4 nanoparticles. And the changes of the magnetic and PL properties with the doping amount were further discussed. It was found that higher Sm3+-doping amount led to stronger magnetic dipole transitions, while the Eun+-doping amount had little effect on the magnetic dipole transitions, thus resulting in different changes in their saturation magnetization with doping amount. Copyright ? 2012 American Scientific Publishers All rights reserved.