Synthesis and magnetic properties of antiferromagnetic Co3O4 nanoparticles

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	Synthesis and magnetic properties of antiferromagnetic Co3O4 nanoparticles
	Zhu, HT ; Luo, J ; Liang, JK ; Rao, GH ; Li, JB ; Zhang, JY ; Du, ZM
刊名	PHYSICA B-CONDENSED MATTER
	2008
卷号	403 期号:18 页码:3141
关键词	CURIE-TEMPERATURE COBALT-HYDROXIDE DECOMPOSITION SUPERLATTICES ANISOTROPY PARTICLES
ISSN号	0921-4526
通讯作者	Luo, J (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	Anti ferromagnetic Co3O4 nanoparticles with diameter around 30nm have been synthesized by a solution-based method. The phase identification by the wide-angle X-ray powder diffraction indicates that the CO3O4 nanoparticle has a cubic spinel structure with a lattice constant of 0.80843(2) nm. The image of field emission scanning electron microscope shows that the nanoparticles are assembled together to form nanorods. The magnetic properties of Co3O4 fine particles have been measured by a superconducting quantum interference device magnetometer. A deviation of the Neel temperature from the bulk is observed, which can be well described by the theory of finite-size scaling. An enhanced coercivity as well as a loop shift are observed in the field-cooled hysteresis loop. The exchange bias field decreases with increasing temperature and diminishes at the Neel temperature. The training effect and the opening of the loop reveal the existence of the spin-glass-like surface spins. (C) 2008 Elsevier B.V. All rights reserved.
收录类别	SCI
资助信息	the Chinese Academy of Sciences; the Innovation Fund of Institute of Physics
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/54355]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhu, HT,Luo, J,Liang, JK,et al. Synthesis and magnetic properties of antiferromagnetic Co3O4 nanoparticles[J]. PHYSICA B-CONDENSED MATTER,2008,403(18):3141.
APA	Zhu, HT.,Luo, J.,Liang, JK.,Rao, GH.,Li, JB.,...&Du, ZM.(2008).Synthesis and magnetic properties of antiferromagnetic Co3O4 nanoparticles.PHYSICA B-CONDENSED MATTER,403(18),3141.
MLA	Zhu, HT,et al."Synthesis and magnetic properties of antiferromagnetic Co3O4 nanoparticles".PHYSICA B-CONDENSED MATTER 403.18(2008):3141.