Synthesis, characterization and magnetic properties of Fe-Al nanopins

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	Synthesis, characterization and magnetic properties of Fe-Al nanopins
	W. S. Zhang; E. Bruck; W. F. Li; P. Z. Si; D. Y. Geng; Z. D. Zhang
	2005
发表期刊	Physica B-Condensed Matter
ISSN	0921-4526
卷号	370 期号:1-4 页码:131-136
摘要	We report the synthesis of Fe-Al nanopins using arc discharge. The morphology and chemical composition of the Fe-Al nanopins were studied by means of X-ray diffraction, X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), and high-resolution transmission electron microscopy (HRTEM). The nanopins are composed of a spherical base of about 20-100 um and a needle-like tip of about several hundred nanometers. EDX and HRTEM studies indicate that the spherical base is mainly composed of alpha-Fe and FeAl core coated with a thin Al2O3 layer, while the needle-like part contains only Al and O and corresponds to Al2O3. The formation mechanism of the nanopins is suggestive of a vapor-liquid-solid (VLS) growth process. The as-prepared Fe-Al nanopins show ferromagnetic properties. The temperature dependence of the magnetization at high temperatures indicates the existence of some phase transformations. (c) 2005 Published by Elsevier B.V.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. univ amsterdam, van waals zeeman inst, nl-1018 xe amsterdam, netherlands.;zhang, ws (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, wenhua rd, shenyang 110016, peoples r china;wszhangimr@hotmail.com
关键词	Arc Discharge Nanopins Nanowires Magnetic Properties Arc-discharge Co Particles Nanocapsules Graphite Crystals Growth
URL	查看原文
WOS记录号	WOS:000234057800018
引用统计	被引频次：6[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/321006/35230
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. S. Zhang,E. Bruck,W. F. Li,et al. Synthesis, characterization and magnetic properties of Fe-Al nanopins[J]. Physica B-Condensed Matter,2005,370(1-4):131-136.
APA	W. S. Zhang,E. Bruck,W. F. Li,P. Z. Si,D. Y. Geng,&Z. D. Zhang.(2005).Synthesis, characterization and magnetic properties of Fe-Al nanopins.Physica B-Condensed Matter,370(1-4),131-136.
MLA	W. S. Zhang,et al."Synthesis, characterization and magnetic properties of Fe-Al nanopins".Physica B-Condensed Matter 370.1-4(2005):131-136.