Large refrigerant capacity of RGa (R = Tb and Dy) compounds
文献类型：期刊论文
| 作者 | Zheng, XQ ; Chen, J ; Shen, J ; Zhang, H ; Xu, ZY ; Gao, WW ; Wu, JF ; Hu, FX ; Sun, JR ; Shen, BG |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2012 |
| 卷号 | 111期号:7 |
| 关键词 | INTERMETALLIC COMPOUNDS MAGNETOCALORIC MATERIALS MAGNETIC-PROPERTIES |
| ISSN号 | 0021-8979 |
| 通讯作者 | Shen, BG: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China. |
| 中文摘要 | The magnetic properties and magnetocaloric effects (MCEs) of RGa (R = Tb and Dy) compounds are investigated. The TbGa compound exhibits two successive magnetic transitions: spin-reorientation (SR) transition at T-SR = 31 K and second-order ferromagnetic (FM)-paramagnetic (PM) transition at Curie temperature T-C = 154 K, while the DyGa compound undergoes a SR transition with T-SR = 25 K and a FM-PM transition with T-C = 113 K. It is noteworthy that a broad distribution of the magnetic entropy change peak is observed. The values of the refrigerant capacity (RC) for TbGa and DyGa are found to be 620.6 and 381.9 J/kg for a field change of 0-5 T, respectively. And for a field change of 0-7 T, the values are 900 and 584.2 J/kg, respectively. The large value of RC for TbGa and DyGa originates from the combined contribution from SR and FM-PM transitions, which enlarges the temperature span of large MCE. (C) 2012 American Institute of Physics. [doi:10.1063/1.3672842] |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China; Chinese Academy of Sciences; Hi-Tech Research and Development program of China |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/40627]  |
| 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 | Zheng, XQ,Chen, J,Shen, J,et al. Large refrigerant capacity of RGa (R = Tb and Dy) compounds[J]. JOURNAL OF APPLIED PHYSICS,2012,111(7). |
| APA | Zheng, XQ.,Chen, J.,Shen, J.,Zhang, H.,Xu, ZY.,...&Shen, BG.(2012).Large refrigerant capacity of RGa (R = Tb and Dy) compounds.JOURNAL OF APPLIED PHYSICS,111(7). |
| MLA | Zheng, XQ,et al."Large refrigerant capacity of RGa (R = Tb and Dy) compounds".JOURNAL OF APPLIED PHYSICS 111.7(2012). |
入库方式： OAI收割
来源：物理研究所
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