Structural and magnetic characterization of Co-Cu nanoparticles prepared by arc-discharge

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	Structural and magnetic characterization of Co-Cu nanoparticles prepared by arc-discharge
	C. Y. You; Z. Q. Yang; Q. F. Xiao; I. Skorvanek; J. Kovac; Z. J. Li; W. Liu; Z. D. Zhang
	2004
发表期刊	European Physical Journal-Applied Physics
ISSN	1286-0042
卷号	28 期号:1 页码:73-77
摘要	The structure and magnetic properties of the nanoparticles of immiscible system Co20Cu80 prepared by means of arc-discharge, have been studied in detail. The diameters of the particles are about 20similar to30 nm and a core/shell structure forms. The cores are Co-Cu solutions, which show some small Co precipitates, encapsulated with a shell of cupper oxide or cobalt oxide as observed by means of high-resolution transmission electron microscope (HRTEM) and energy dispersive X-ray (EDS). The loop shift in the hysteresis loop indicates the existence of the exchange bias between ferromagnetic and antiferromagnetic components at low temperatures. A block temperature about 180 K has been observed for as-deposited nanoparticles. For the annealed nanoparticles, the thermal magnetization at low temperatures is satisfied with Bloch's law.
部门归属	chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. slovak acad sci, inst expt phys, kosice 04353, slovakia. shenyang polytech univ, lab ultrafine particles, shenyang 110023, peoples r china.;you, cy (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;cyyou75@hotmail.com
关键词	Giant Magnetoresistance Granular Ribbons Iron Nanoparticles Particles Alloys Fe Films Electrodeposition
URL	查看原文
WOS记录号	WOS:000224804900008
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35689
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. Y. You,Z. Q. Yang,Q. F. Xiao,et al. Structural and magnetic characterization of Co-Cu nanoparticles prepared by arc-discharge[J]. European Physical Journal-Applied Physics,2004,28(1):73-77.
APA	C. Y. You.,Z. Q. Yang.,Q. F. Xiao.,I. Skorvanek.,J. Kovac.,...&Z. D. Zhang.(2004).Structural and magnetic characterization of Co-Cu nanoparticles prepared by arc-discharge.European Physical Journal-Applied Physics,28(1),73-77.
MLA	C. Y. You,et al."Structural and magnetic characterization of Co-Cu nanoparticles prepared by arc-discharge".European Physical Journal-Applied Physics 28.1(2004):73-77.