Simultaneous enhancements of Curie temperature and magnetocaloric effects in the La1-xCexFe11.5Si1.5Cy compounds
文献类型：期刊论文
| 作者 | Zhang, H ; Shen, J ; Xu, ZY ; Zheng, XQ ; Hu, FX ; Sun, JR ; Shen, BG |
| 刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| 出版日期 | 2012 |
| 卷号 | 324期号:4页码:484 |
| 关键词 | MAGNETIC ENTROPY CHANGE ROOM-TEMPERATURE INTERSTITIAL COMPOUNDS TRANSITION REFRIGERATION SUBSTITUTION MNAS1-XSBX EXPANSION |
| ISSN号 | 0304-8853 |
| 通讯作者 | Zhang, H (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China. |
| 中文摘要 | The effects of introducing Ce and C atoms on the Curie temperature (T-C), the magnetic entropy change (Delta S-M) and the hysteresis loss have been investigated in the NaZn13-type LaFe11.5Si1.5 compound. Partial replacement of La with Ce leads to a decrease in T-C and an increase in Delta S-M; however, the introduction of interstitial C atoms can adjust T-C to high temperature. The itinerant-electron metamagnetic transition is weakened after carbonization, which results in a reduction of both the hysteresis loss and magnetocaloric effect (MCE). The maximum value of Delta S-M for La0.8Ce0.2Fe11.5Si1.5C0.2 is found to be -28 J/kg K at T-C=207 K with an effective refrigeration capacity of 420 J/kg for a field change from 0 to 5 T. Our study reveals that the enhancements of both T-C and MCEs can be achieved simultaneously in the La-1 xCexFe11.5Si1.5Cy compounds by adjusting the concentrations of Ce and C atoms appropriately. (C) 2011 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China; Chinese Academy of Sciences; China Postdoctoral Science Foundation; National Basic Research Program of China |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52606]  |
| 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 | Zhang, H,Shen, J,Xu, ZY,et al. Simultaneous enhancements of Curie temperature and magnetocaloric effects in the La1-xCexFe11.5Si1.5Cy compounds[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2012,324(4):484. |
| APA | Zhang, H.,Shen, J.,Xu, ZY.,Zheng, XQ.,Hu, FX.,...&Shen, BG.(2012).Simultaneous enhancements of Curie temperature and magnetocaloric effects in the La1-xCexFe11.5Si1.5Cy compounds.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,324(4),484. |
| MLA | Zhang, H,et al."Simultaneous enhancements of Curie temperature and magnetocaloric effects in the La1-xCexFe11.5Si1.5Cy compounds".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 324.4(2012):484. |
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来源：物理研究所
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