文献类型：期刊文献

英文题名：Hydrothermal synthesis, morphology, structure, and magnetic properties of perovskite structure LaCr1-xMnxO3 (x=0.1, 0.2, and 0.3)

作者：Wang, Shan[1,2,3];Wu, Xiaofeng[4];Yuan, Long[4];Zhang, Chenyang[5];Cui, Xiaoqiang[2,3];Lu, Dayong[1]

第一作者：Wang, Shan

通讯作者：Lu, DY[1];Yuan, L[2]

机构：[1]Jilin Inst Chem Technol, Dept Mat Sci & Engn, 45 Chengde St, Jilin 132022, Jilin, Peoples R China;[2]Jilin Univ, Dept Mat Sci, Key Lab Automobile Mat MOE, Changchun 130012, Jilin, Peoples R China;[3]Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Jilin, Peoples R China;[4]Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Jilin, Peoples R China;[5]Xinxiang Univ, Dept Chem & Chem Engn, 191 Jinsui St, Xinxiang, Henan, Peoples R China

第一机构：Jilin Inst Chem Technol, Dept Mat Sci & Engn, 45 Chengde St, Jilin 132022, Jilin, Peoples R China

通讯机构：[1]corresponding author), Jilin Inst Chem Technol, Dept Mat Sci & Engn, 45 Chengde St, Jilin 132022, Jilin, Peoples R China;[2]corresponding author), Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Jilin, Peoples R China.

年份：2018

卷号：20

期号：22

起止页码：3034-3042

外文期刊名：CRYSTENGCOMM

收录：;Scopus(收录号：2-s2.0-85048272486);WOS:【SCI-EXPANDED(收录号:WOS:000434312100005)】；

基金：This work was supported by the "Thirteenth Five Year" Project (No. JJKH20170217KJ) of Science and Technology Research in the Education Department of Jilin Province and the projects of National Natural Science Foundations of China (Grant No. 21271084) and of Jilin Province (20160101290JC), and Changbai Mountain Scholar Distinguished Professor (2015047).

语种：英文

摘要：We report the synthesis of LaCr1-xMnxO3 (x = 0.1, 0.2, and 0.3) single crystal microcubes via a mild hydrothermal method. The as-synthesized LaCr1-xMnxO3 samples were crystallized into the Pnma space group with uniform particle size and cubic morphology. The lattice parameters increased as the doping level of Mn increased from x = 0.1 to 0.3. XPS characterization of the samples showed that the valence states of Cr and Mn are both +3. A temperature-dependent magnetization study indicated a clear transition point of canted-antiferromagnetic to paramagnetic behaviour from 3-380 K, with their Neel transition points located between 246-265 K. The isothermal magnetic hysteresis of the LaCr1-xMnxO3 samples show that they possess the same coercive field strength but a linear increment of remnant magnetization with increasing Mn doping level. A temperature-dependent magnetic entropy change study indicated that the samples show a maximum S of 0.4247 J kg(-1) K-1 for LaCr0.7Mn0.3O3 at 40 K for H = 6 T. Arrott plots of M(2)versus H/M indicate a second-order magnetic phase transition for all of the as-synthesized LaCr1-xMnxO3 samples. All these results suggest that the promotion of magnetization was successfully performed by hydrothermally doping Mn in a LaCrO3 lattice. This study provides a design and synthesis strategy to increase the ferromagnetic exchange in weak magnetization materials.