Synthesis, structure and magnetic properties of DyAl2 nanoparticles
文献类型：期刊论文
| 作者 | W. S. Zhang ; E. Bruck ; Z. D. Zhang ; O. Tegus ; W. F. Li ; P. Z. Si ; D. Y. Geng ; J. C. P. Klaasse ; K. H. J. Buschow |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2006 |
| 卷号 | 413期号:1-2页码:29-34 |
| 关键词 | nanostructures vapour deposition transmission electron microscopy magnetic measurements arc-discharge fe-co(c) nanocapsules particles refrigeration |
| ISSN号 | 0925-8388 |
| 中文摘要 | DyAl2 nanoparticles have been prepared by means of are discharge in a mixture of argon and hydrogen gas. The Structure of DyAl2 nanoparticles is studied by means of X-ray diffraction, X-ray photoelectron spectroscopy, and high-resolution transmission electron rnicroscopy. X-ray photoelectron spectroscopy shows that the as-prepared DyAl2 nanoparticles are coated with a layer of Al2O3 phase on the surface, and their sizes vary from 20 nm to about 100 nm. The DyAl2 nanoparticles exhibit ferromagnetic properties that are different from bulk DyAl2 compound. The gradual decrease of the magnetization with increasing temperature in a wide temperature range reveals the size distribution ofthe DyAl2 nanoparticles. The magnetic-entropy changes are derived from the isothermal magnetization curves measured at different temperatures. The magnetic-entropy change of the DyAl2 nanoparticles is lower than that of the bulk DyAl2 material but has a broadened peak. (c) 2005 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34713]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | W. S. Zhang,E. Bruck,Z. D. Zhang,et al. Synthesis, structure and magnetic properties of DyAl2 nanoparticles[J]. Journal of Alloys and Compounds,2006,413(1-2):29-34. |
| APA | W. S. Zhang.,E. Bruck.,Z. D. Zhang.,O. Tegus.,W. F. Li.,...&K. H. J. Buschow.(2006).Synthesis, structure and magnetic properties of DyAl2 nanoparticles.Journal of Alloys and Compounds,413(1-2),29-34. |
| MLA | W. S. Zhang,et al."Synthesis, structure and magnetic properties of DyAl2 nanoparticles".Journal of Alloys and Compounds 413.1-2(2006):29-34. |
入库方式： OAI收割
来源：金属研究所
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