Synthesis, microstructure, and magnetic properties of monosized Mn x Zn y Fe3-x - y O4 ferrite nanocrystals

被引：20
|
作者：
Yoon, Hayoung [1 ]
Lee, Ji Sung [1 ]
Min, Ji Hyun [1 ]
Wu, JunHua [2 ]
Kim, Young Keun [1 ]
机构：
[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea
[2] Korea Univ, Pioneer Res Ctr Biomed Nanocrystals, Seoul 136713, South Korea
来源：
NANOSCALE RESEARCH LETTERS | 2013年 / 8卷
基金：
新加坡国家研究基金会;
关键词：
Ferrite; Nanocrystal; Nanoemulsion; Ferrimagnetism; Superparamagnetism; INVERSION DEGREE; ZINC; NANOPARTICLES;
D O I：
10.1186/1556-276X-8-530
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report the synthesis and characterization of ferrite nanocrystals which exhibit high crystallinity and narrow size distributions. The three types of samples including Zn ferrite, Mn ferrite, and Mn-Zn ferrite were prepared via a non-aqueous nanoemulsion method. The structural, chemical, and magnetic properties of the nanocrystals are analyzed by transmission electron microscopy, X-ray diffraction, X-ray fluorescence, and physical property measurement system. The characterization indicates that the three types of ferrite nanocrystals were successfully produced, which show well-behaved magnetic properties, ferrimagnetism at 5 K and superparamagnetism at 300 K, respectively. In addition, the magnetization value of the ferrites increases with the increasing concentration of Mn.
引用
收藏
页码：1 / 5
页数：5
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