Magnetic properties and large cryogenic low-field magnetocaloric effect of HoCo(2) nanoparticles without core/shell structure
文献类型：期刊论文
| 作者 | X. G. Liu ; D. Y. Geng ; J. J. Jiang ; B. Li ; S. Ma ; D. Li ; W. Liu ; Z. D. Zhang |
| 刊名 | Journal of Nanoparticle Research
 |
| 出版日期 | 2010 |
| 卷号 | 12期号:4页码:1167-1172 |
| 关键词 | Nanoparticles Magnetic properties Magnetocaloric effect Environment-friendly refrigeration behavior |
| ISSN号 | 1388-0764 |
| 中文摘要 | The HoCo(2) nanoparticles are found to be stable in air without any shell protection. The HoCo(2) nanoparticles display superparamagnetic properties between their blocking temperature of 40 K and Curie temperature of 78 K. The magnetic-entropy change increases with decreasing temperature at a certain magnetic-field change, which is ascribed to the competition between the Zeeman energy and thermal-agitation energy at low temperatures. A large magnetic-entropy change of 19.4 J kg(-1) K(-1) was found at 7.5 K in an applied-field change from 1 to 7 T, while 6.1 J kg(-1) K(-1) was achieved in a low field change of 1 T. HoCo(2) nanoparticles are useful for application of magnetic refrigeration at low temperatures. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/31319]  |
| 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 | X. G. Liu,D. Y. Geng,J. J. Jiang,et al. Magnetic properties and large cryogenic low-field magnetocaloric effect of HoCo(2) nanoparticles without core/shell structure[J]. Journal of Nanoparticle Research,2010,12(4):1167-1172. |
| APA | X. G. Liu.,D. Y. Geng.,J. J. Jiang.,B. Li.,S. Ma.,...&Z. D. Zhang.(2010).Magnetic properties and large cryogenic low-field magnetocaloric effect of HoCo(2) nanoparticles without core/shell structure.Journal of Nanoparticle Research,12(4),1167-1172. |
| MLA | X. G. Liu,et al."Magnetic properties and large cryogenic low-field magnetocaloric effect of HoCo(2) nanoparticles without core/shell structure".Journal of Nanoparticle Research 12.4(2010):1167-1172. |
入库方式： OAI收割
来源：金属研究所
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