Superparamagnetic nanocrystalline CuFe2O4

被引：43

作者：

Roy, S ^{[1
]}

Ghose, J ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India

来源：

JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 09期

关键词：

D O I：

10.1063/1.372662

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Cubic CuFe2O4 was prepared by coprecipitation in a polymer matrix. Crystallite size and particle size of the prepared samples, determined from x-ray data and transmission electron microscopy analyses respectively, are in the range of nanocrystalline materials. Cation distribution of the nanocrystalline samples was determined from x-ray diffraction data. Cu-oct(2+) content in the nanocrystalline samples is lower than the critical Cu-oct(2+) required for cooperative distortion to tetragonal symmetry and hence all the samples are cubic. Field cooled and zero field cooled magnetization measurements show superparamagnetic behavior of the nanocrystalline ferrite samples. (C) 2000 American Institute of Physics. [S0021-8979(00)40708-5].

引用

页码：6226 / 6228

页数：3

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