Synthesis, structure and magnetic properties of nanocrystalline ZnxMn1-xFe2O4 prepared by ball milling

被引：94
|
作者：
Zheng, Z. G. [1 ]
Zhong, X. C. [1 ]
Zhang, Y. H. [1 ]
Yu, H. Y. [1 ]
Zeng, D. C. [1 ]
机构：
[1] S China Univ Technol, Sch Mech Engn, Guangzhou 510640, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 466卷 / 1-2期
关键词：
Ball milling; Nanocrystalline MnZn ferrite; Superparamagnetization;
D O I：
10.1016/j.jallcom.2007.11.112
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The nanocrystalline ZnxMn1-xFe2O4 (x = 0.1-0.9) powders were prepared by high-energy ball milling. Their structure and magnetic properties of Mn-Zn ferrites with various Zn content were investigated by means of X-ray diffractometer (XRD), scanning electron microscopy and magnetic property measurement system in this paper. The XRD results indicate that the formed particles with associated strains are ultrafine in diameter of about 18 nm. The lattice parameters increase proportionally with the increase of Mn content. The magnetic studies on the milled nanocrystalline ZnxMn1-xFe2O4 samples show that the ultrafine zinc ferrites exhibit net magnetization with a superparamagnetic behavior at room temperature. The clear understanding of this anomalous behaviour of MnZn ferrites in the nanocrystalline state needs to be studied further. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：377 / 382
页数：6
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