Preparation of epitaxial CaMn7O12 film via sol-gel method and its ferromagnetic properties

被引：1
作者：
Wang, Yunwei [1 ,2 ]
Zhao, Gaoyang [1 ]
Wu, Chuanbao [3 ]
Duan, Zongfan [1 ]
机构：
[1] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Shaanxi, Peoples R China
[2] Panzhihua Univ, Sch Biol & Chem Engn, Panzhihua 617000, Peoples R China
[3] Panzhihua Univ, Coll Vanadium & Titanium, Panzhihua 617000, Peoples R China
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2018年 / 88卷 / 03期
基金：
中国国家自然科学基金;
关键词：
CaMn7O12; Thin film; Epitaxy; Sol-gel method; Magnetic properties; Multiferroic materials; THIN-FILMS; ORIENTATION; MANGANITE; CA2+;
D O I：
10.1007/s10971-018-4864-y
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
CaMn7O12 precursor sol was prepared by using Ca(NO3)(2)4H(2)O and Mn(CH3COO)(4)4H(2)O as the raw materials, acetylacetone (AcAcH) as the chelating agent, and methyl alcohol (MeOH) as the solvent. The CaMn7O12 crystalline film was obtained via dip-coating and annealing treatment on the LaAlO3 (001) single-crystal substrate. XRD -2 scan indicated that the as-prepared CaMn7O12 film had strong preferred orientation along the c-axis. In addition, the results of the and scans demonstrated that the film exhibited outstanding out-of-plane and in-plane texture characteristics. The SEM characterization showed that the CaMn7O12 film was dense and free of cracks. The grain size was uniform with an average size of 180nm. Vibrating sample magnetometer (VSM) test results indicated the CaMn7O12 film was antiferromagnetic and had a saturation magnetization of 114.2emu/cm(3) at 50K.
引用
收藏
页码：639 / 645
页数：7
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