文献类型：期刊文献

英文题名：Magnetic and magnetodielectric properties of Y3-xLaxFe5O12 ceramics

作者：Wu, Huarui[1,2,3];Huang, Fengzhen[1,2,4];Xu, Tingting[1,2];Ti, Ruixia[1,2];Lu, Xiaomei[1,2,4];Kan, Yi[1,2];Lv, Xueliang[1,2];Zhu, Weili[1,2];Zhu, Jinsong[1,2,4]

第一作者：Wu, Huarui;吴花蕊

通讯作者：Huang, FZ[1]

机构：[1]Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China;[2]Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China;[3]Xinxiang Univ, Coll Phys & Elect Engn, Xinxiang 453003, Peoples R China;[4]Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China

第一机构：Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

通讯机构：[1]corresponding author), Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.

年份：2015

卷号：117

期号：14

外文期刊名：JOURNAL OF APPLIED PHYSICS

收录：;EI(收录号：20151600757845);Scopus(收录号：2-s2.0-84927629642);WOS:【SCI-EXPANDED(收录号:WOS:000352967400010)】；

基金：This work was supported by National Natural Science Foundation of China (Grant Nos. 51225201, 61271078, and 51102133), the 973 Project of MOST (Grant No. 2015CB921201), the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the Fundamental Research Funds for the Central Universities and the Fundamental and Frontier Research of Henan Province (Grant No. 142300410099).

语种：英文

外文关键词：Electromagnets - Lanthanum compounds - Saturation magnetization - Solid state reactions - Yttrium iron garnet

摘要：Y3-xLaxFe5O12 (x = 0-0.5) ceramics with garnet structure are prepared by the solid state reaction method and their structural, magnetic, and magnetodielectric properties are investigated systematically. La3+ substitution leads to lattice expansion and possible ion transposition, which oppositely affect the variation of Fe2+ concentration. As a result, both the saturation magnetization and the intrinsic magnetodielectric effect first increase and then decrease with the increase of La concentration. More interestingly, room temperature large magnetodielectric coefficient of about -5% is obtained at 10(6) Hz and 0.9 T for Y2.7La0.3Fe5O12 ceramics. This study provides a feasible alternative method for modulating the saturation magnetization and the magnetodielectric effect of Y3Fe5O12-based materials. (C) 2015 AIP Publishing LLC.