Structure and magnetic properties of boron-oxide-coated Fe(B) nanocapsules prepared by arc discharge in diborane

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	Structure and magnetic properties of boron-oxide-coated Fe(B) nanocapsules prepared by arc discharge in diborane
	Z. D. Zhang; J. L. Yu; J. G. Zheng; I. Skorvanek; J. Kovac; X. L. Dong; Z. J. Li; S. R. Jin; H. C. Yang; Z. J. Guo; W. Liu; X. G. Zhuo
	2001
发表期刊	Physical Review B
ISSN	0163-1829
卷号	64 期号:2
摘要	The structure and magnetic properties of boron-oxide-encapsulated magnetic nanocapsules fabricated by arc discharge in diborane (B2H6) atmosphere have been investigated. The structure of boron-oxide-coated Fe(B) nanocapsules is different from that of carbon-coated nanocapsules. In contrast to carbon-coated nanocapsules consisting of a crystalline shell of graphite and a core of alpha -Fe and/or Fe3C, boron-oxide-coated Fe nanocapsules show an amorphous surface layer and a core of alpha -Fe [and alpha -Fe(B) solid solution], gamma -Fe, FeB. and/or Fe3B phases. The loop shift in the hysteresis loop indicates the existence of the exchange bias between ferromagnetic and antiferromagnetic components at room temperature. The Fe3O4 phase contributes to the exchange bias as antiferromagnetic components. A very wide energy barrier distribution exists in the Fe(B) nanocapsules.
部门归属	acad sinica, inst met res, int ctr mat phys, shenyang 110015, peoples r china. univ liverpool, dept engn, liverpool l69 3gh, merseyside, england. slovak acad sci, inst phys expt, bratislava, slovakia. shenyang polytech univ, lab ultrafine particles, shenyang 110023, peoples r china.;zhang, zd (reprint author), acad sinica, inst met res, int ctr mat phys, shenyang 110015, peoples r china;zdzhang@imr.ac.cn
关键词	Fe-co(c) Nanocapsules Exchange-anisotropy Carbon Nanotubes Particles Fe Alloys
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WOS记录号	WOS:000169835700045
引用统计	被引频次：61[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/321006/36922
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. D. Zhang,J. L. Yu,J. G. Zheng,et al. Structure and magnetic properties of boron-oxide-coated Fe(B) nanocapsules prepared by arc discharge in diborane[J]. Physical Review B,2001,64(2).
APA	Z. D. Zhang.,J. L. Yu.,J. G. Zheng.,I. Skorvanek.,J. Kovac.,...&X. G. Zhuo.(2001).Structure and magnetic properties of boron-oxide-coated Fe(B) nanocapsules prepared by arc discharge in diborane.Physical Review B,64(2).
MLA	Z. D. Zhang,et al."Structure and magnetic properties of boron-oxide-coated Fe(B) nanocapsules prepared by arc discharge in diborane".Physical Review B 64.2(2001).