Reduction of magnetic hysteresis loss in La0.5Pr0.5Fe11.4Si1.6Hx hydrides with large magnetocaloric effects
文献类型：期刊论文
| 作者 | Zhao, JL ; Shen, J ; Hu, FX ; Li, YX ; Sun, JR ; Shen, BG |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2010 |
| 卷号 | 107期号:11 |
| 关键词 | ENTROPY CHANGE METAMAGNETIC TRANSITION INTERSTITIAL COMPOUNDS ROOM-TEMPERATURE EXPANSION COMPOUND |
| ISSN号 | 0021-8979 |
| 通讯作者 | Shen, BG (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China. |
| 中文摘要 | Magnetic properties and magnetocaloric effects (MCEs) have been investigated in hydrogenated La0.5Pr0.5Fe11.4Si1.6Hx (x=0, 0.9, and 1.6) compounds. It is found that the Curie temperature T-C can be tuned from 189 to 317 K by adjusting hydrogen content from 0 to 1.6. It is attractive that both thermal and magnetic hysteresis are remarkably reduced because of the weakness of the itinerant-electron metamagnetic transition after hydrogenation, while the large magnetic entropy change is retained. The maximal hysteresis loss at T-C decreases from 17.8 to 2.3 J/kg as x increases from 0 to 1.6. For the samples with x=0, 0.9, and 1.6, the maximal values of -Delta S are 26.3, 24.1, and 22.1 J/kg K at T-C, with efficient refrigeration capacities of 463, 366, and 351 J/kg for a field change of 0-5 T, respectively. Large reversible MCE and small hysteresis with considerable value of refrigeration capacity indicate the potentiality of La0.5Pr0.5Fe11.4Si1.6Hx hydrides as a candidate magnetic refrigerant around room temperature. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3374635] |
| 收录类别 | SCI |
| 资助信息 | National Basic Research Program of China; National Natural Science Foundation of China [50731007]; Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51977]  |
| 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 | Zhao, JL,Shen, J,Hu, FX,et al. Reduction of magnetic hysteresis loss in La0.5Pr0.5Fe11.4Si1.6Hx hydrides with large magnetocaloric effects[J]. JOURNAL OF APPLIED PHYSICS,2010,107(11). |
| APA | Zhao, JL,Shen, J,Hu, FX,Li, YX,Sun, JR,&Shen, BG.(2010).Reduction of magnetic hysteresis loss in La0.5Pr0.5Fe11.4Si1.6Hx hydrides with large magnetocaloric effects.JOURNAL OF APPLIED PHYSICS,107(11). |
| MLA | Zhao, JL,et al."Reduction of magnetic hysteresis loss in La0.5Pr0.5Fe11.4Si1.6Hx hydrides with large magnetocaloric effects".JOURNAL OF APPLIED PHYSICS 107.11(2010). |
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来源：物理研究所
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