Tuning of magnetocaloric effect in a La0.69Ca0.31MnO3 single crystal by pressure
文献类型：期刊论文
| 作者 | Sun, Y ; Kamarad, J ; Arnold, Z ; Kou, ZQ ; Cheng, ZH |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2006 |
| 卷号 | 88期号:10 |
| 关键词 | MAGNETIC ENTROPY CHANGE ROOM-TEMPERATURE LA2/3CA1/3MNO3 PEROVSKITE |
| ISSN号 | 0003-6951 |
| 通讯作者 | Sun, Y (reprint author), Chinese Acad Sci, State Key Lab Magnetism, Inst Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | We report a study of the effect of hydrostatic pressure on the magnetocaloric effect in a La0.69Ca0.31MnO3 single crystal. The single crystal exhibits a much larger magnetic entropy change (Delta S-m) than the corresponding polycrystalline samples, reaching 5.2 J/kg K and 8.5 J/kg K for a magnetic field variation of 1 T and 5 T, respectively. Under hydrostatic pressure, the peak position of Delta S-m significantly moves to higher temperatures due to the shift of the magnetic phase transition, from 213.5 K under ambient pressure up to 236.5 K under a pressure of 1.1 GPa, while the maximum value of Delta S-m remains nearly the same. These exceptional results demonstrate that the magnetocaloric effect in magnetic materials with strong spin-lattice coupling can be effectively tuned by pressure. (c) 2006 American Institute of Physics. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/46191]  |
| 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 | Sun, Y,Kamarad, J,Arnold, Z,et al. Tuning of magnetocaloric effect in a La0.69Ca0.31MnO3 single crystal by pressure[J]. APPLIED PHYSICS LETTERS,2006,88(10). |
| APA | Sun, Y,Kamarad, J,Arnold, Z,Kou, ZQ,&Cheng, ZH.(2006).Tuning of magnetocaloric effect in a La0.69Ca0.31MnO3 single crystal by pressure.APPLIED PHYSICS LETTERS,88(10). |
| MLA | Sun, Y,et al."Tuning of magnetocaloric effect in a La0.69Ca0.31MnO3 single crystal by pressure".APPLIED PHYSICS LETTERS 88.10(2006). |
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来源：物理研究所
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