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Synthesis and magnetic characterization of nickel ferrite nanoparticles prepared by co-precipitation route

文献类型:期刊论文

作者Maaz, K.1,2; Karim, S.2; Mumtaz, A.1; Hasanain, S. K.1; Liu, J.3; Duan, J. L.3
刊名JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
出版日期2009-06-01
卷号321期号:12页码:1838-1842
关键词Magnetic properties Ferrite nanoparticles Surface anisotropy Magnetic materials
ISSN号0304-8853
DOI10.1016/j.jmmm.2008.11.098
英文摘要Magnetic nanoparticles of nickel ferrite (NiFe(2)O(4)) have been synthesized by co-precipitation route using stable ferric and nickel salts with sodium hydroxide as the precipitating agent and oleic acid as the surfactant. X-ray diffraction (XRD) and transmission electron microscope (TEM) analyses confirmed the formation of single-phase nickel ferrite nanoparticles in the range 8-28 nm depending upon the annealing temperature of the samples during the synthesis. The size of the particles (d) was observed to be increasing linearly with annealing temperature of the sample while the coercivity with particle size goes through a maximum, peaking at similar to 11 nm and then decreases for larger particles. Typical blocking effects were observed below similar to 225 K for all the prepared samples. The superparamagnetic blocking temperature (T(B)) was found to be increasing with increasing particle size that has been attributed to the increased effective anisotropy energy of the nanoparticles. The saturation moment of all the samples was found much below the bulk value of nickel ferrite that has been attributed to the disordered surface spins or dead/inert layer in these nanoparticles. (c) 2008 Elsevier B. V. All rights reserved.
WOS关键词COFE2O4 NANOPARTICLES ; EXCHANGE BIAS ; PARTICLES ; NANOWIRES ; COBALT ; ANISOTROPY ; ARRAYS ; IRON
资助项目Material Science Group-II, Institute of Modern Physics, Chinese Academy of Sciences P. R. China ; National Natural Science Foundation of China[10775161] ; National Natural Science Foundation of China[10775162] ; National Natural Science Foundation of China[10805062] ; West Light Foundation of Chinese Academy of Sciences
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:000265273300006
出版者ELSEVIER SCIENCE BV
资助机构Material Science Group-II, Institute of Modern Physics, Chinese Academy of Sciences P. R. China ; National Natural Science Foundation of China ; West Light Foundation of Chinese Academy of Sciences
公开日期2010-10-29
源URL[http://ir.imp.cas.cn/handle/113462/5287]  
专题近代物理研究所_近代物理研究所知识存储(2010之前)
通讯作者Maaz, K.
作者单位1.Quaid I Azam Univ, Dept Phys, Islamabad, Pakistan
2.PINSTECH, Islamabad, Pakistan
3.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China
推荐引用方式
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Maaz, K.,Karim, S.,Mumtaz, A.,et al. Synthesis and magnetic characterization of nickel ferrite nanoparticles prepared by co-precipitation route[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2009,321(12):1838-1842.
APA Maaz, K.,Karim, S.,Mumtaz, A.,Hasanain, S. K.,Liu, J.,&Duan, J. L..(2009).Synthesis and magnetic characterization of nickel ferrite nanoparticles prepared by co-precipitation route.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,321(12),1838-1842.
MLA Maaz, K.,et al."Synthesis and magnetic characterization of nickel ferrite nanoparticles prepared by co-precipitation route".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 321.12(2009):1838-1842.

入库方式: OAI收割

来源:近代物理研究所

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