Effect of SiO(2) coating on the magnetic properties of Ni-Zn ferrite

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	Effect of SiO(2) coating on the magnetic properties of Ni-Zn ferrite
	B. Zhou; Z. G. Liu; X. J. Wang; Y. Sui; X. Q. Huang; Z. Lu; W. H. Su
	2010
发表期刊	Physica B-Condensed Matter
ISSN	0921-4526
卷号	405 期号:1 页码:374-378
摘要	The Ni-Zn ferrite/SiO(2) nanocomposites (ZNF/SiO(2) NCs) with core-shell structure were synthesized using Stober method and a modified one. The core-shell structure was confirmed by transmission electron spectroscopy (TEM). The product obtained by modified Stober method was more uniform than by Stober method. The strength of dipole-dipole interaction between Ni-Zn nanoparticles decreases and the coordination of surface atoms increases due to surface modification. The decrease of blocking temperature and coercivity of the magnetic particles at low temperature can be attributed to the coating Of SiO(2), which weakens the surface spin disorder of magnetic nanoparticles. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[zhou, bo; liu, zhiguo; wang, xianjie; sui, yu; huang, xiqiang; lue, zhe; su, wenhui] harbin inst technol, ctr condensed matter sci & technol, dept phys, harbin 150080, peoples r china. [su, wenhui] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;liu, zg (reprint author), harbin inst technol, ctr condensed matter sci & technol, dept phys, harbin 150080, peoples r china;zhoubo_a@hit.edu.cn liuzhiguo@hit.edu.cn
关键词	Ni-zn Ferrite Stober Method Core-shell Nanocomposites Magnetism Core-shell Nanoparticles Silica Particles Gel Surface
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31771
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Zhou,Z. G. Liu,X. J. Wang,et al. Effect of SiO(2) coating on the magnetic properties of Ni-Zn ferrite[J]. Physica B-Condensed Matter,2010,405(1):374-378.
APA	B. Zhou.,Z. G. Liu.,X. J. Wang.,Y. Sui.,X. Q. Huang.,...&W. H. Su.(2010).Effect of SiO(2) coating on the magnetic properties of Ni-Zn ferrite.Physica B-Condensed Matter,405(1),374-378.
MLA	B. Zhou,et al."Effect of SiO(2) coating on the magnetic properties of Ni-Zn ferrite".Physica B-Condensed Matter 405.1(2010):374-378.