Magnetic entropy change and its temperature variation in compounds La(Fe1-xCox)(11.2)Si-1.8
文献类型：期刊论文
| 作者 | Hu, FX ; Qian, XL ; Sun, JR ; Wang, GJ ; Zhang, XX ; Cheng, ZH ; Shen, BG |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2002 |
| 卷号 | 92期号:7页码:3620 |
| 关键词 | ELECTRON METAMAGNETIC TRANSITION INTERMETALLIC COMPOUNDS LA(FE |
| ISSN号 | 0021-8979 |
| 通讯作者 | Hu, FX: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | Magnetic entropy change DeltaS of compounds La(Fe1-xCox)(11.2)Si-1.8 with the cubic NaZn13-type structure was investigated around their Curie temperature T-C. It is found that the phase transition is completely reversible, indicating a nature of second order phase transition. The maximum value of \DeltaS\similar to13.0 J/kg K under a field of 5 T was achieved in compound LaFe11.2Si1.8 at its T-C of similar to222 K, which exceeds that of most materials involving a second order transition at the corresponding temperature. With increasing substitution of Co for Fe from x=0 to x=0.8, T-C shifts from 222 to 307 K and entropy change decreases. However, \DeltaS\ still has a considerable magnitude near room temperature. The large magnetic entropy change is believed to be due to the abrupt change of magnetization at T-C, which is associated with the strong structural and magnetic interplay in the compounds. (C) 2002 American Institute of Physics. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41187]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Hu, FX,Qian, XL,Sun, JR,et al. Magnetic entropy change and its temperature variation in compounds La(Fe1-xCox)(11.2)Si-1.8[J]. JOURNAL OF APPLIED PHYSICS,2002,92(7):3620. |
| APA | Hu, FX.,Qian, XL.,Sun, JR.,Wang, GJ.,Zhang, XX.,...&Shen, BG.(2002).Magnetic entropy change and its temperature variation in compounds La(Fe1-xCox)(11.2)Si-1.8.JOURNAL OF APPLIED PHYSICS,92(7),3620. |
| MLA | Hu, FX,et al."Magnetic entropy change and its temperature variation in compounds La(Fe1-xCox)(11.2)Si-1.8".JOURNAL OF APPLIED PHYSICS 92.7(2002):3620. |
入库方式： OAI收割
来源：物理研究所
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