High-frequency magnetic properties of Ni-Zn ferrite nanoparticles synthesized by a low temperature chemical method

被引：47

作者：

Lu, Xuegang ^{[1
]}

Liang, Gongying ^{[1
]}

Sun, Qianjin ^{[1
]}

Yang, Caihua ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Sci, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Ni-Zn ferrite; Nanoparticles; Magnetic materials; Permeability spectra; HYDROTHERMAL SYNTHESIS; PARTICLES;

D O I：

10.1016/j.matlet.2010.11.066

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spinel-structured Ni-Zn ferrite nanoparticles (NPs) have been directly synthesized by a low temperature co-precipitation method. The structure and high-frequency magnetic properties of the particles were investigated. The as-prepared Ni-Zn ferrite NPs demonstrate typical soft magnetic properties. The saturation magnetization (M(s)), as high as about 60 emu/g, was achieved. The imaginary part mu of the permeability shows a broad peak in the frequency range 200 MHz similar to 6 GHz, which indicates that the as-prepared Ni-Zn ferrite NPs have a remarkable feature of electromagnetic (EM) wave absorption in the high-frequency range. Hence, resultant Ni-Zn ferrite NPs can be used as efficient microwave absorbers and effective heating mediators for hyperthermia application in cancer therapy. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：674 / 676

页数：3

共 14 条

[1] Nanosized powders of NiZn ferrite: Synthesis, structure, and magnetism [J].