Phase transition processes and magnetocaloric effects in the Heusler alloys NiMnGa with concurrence of magnetic and structural phase transition
文献类型：期刊论文
| 作者 | Long, Y ; Zhang, ZY ; Wen, D ; Wu, GH ; Ye, RC ; Chang, YQ ; Wan, FR |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2005 |
| 卷号 | 98期号:4 |
| 关键词 | ROOM-TEMPERATURE APPLICATIONS GD-5(SI2GE2) ENTROPY |
| ISSN号 | 0021-8979 |
| 通讯作者 | Long, Y (reprint author), Univ Sci & Technol, Sch Mat Sci & Engn, Beijing 100083, Peoples R China. |
| 中文摘要 | The Ni2MnGa-based Heusler alloys with high magnetocaloric effect have attracted considerable attention as a promising magnetic refrigerant. The phase-transition processes and magnetic entropy changes in the NiMnGa alloys with the concurrence of magnetic and structural phase transitions were studied. The ac magnetic susceptibility results showed the magnetic transition occurred during the reverse martensitic phase transition in the Ni55.5Mn20Ga24.5 alloy and the direct transition from the ferromagnetic matrensitic phase to the paramagnetic austenitic phase occurred in the Ni54.9Mn20.5Ga24.6 alloy. When the magnetic field had changed to 2 T, a comparable large magnetic entropy change was observed in both the Ni55.5Mn20Ga24.5 and Ni54.9Mn20.5Ga24.6 alloys, which is speculated as the result of the discontinuous change of magnetization near the phase transition. (c) 2005 American Institute of Physics. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50831]  |
| 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 | Long, Y,Zhang, ZY,Wen, D,et al. Phase transition processes and magnetocaloric effects in the Heusler alloys NiMnGa with concurrence of magnetic and structural phase transition[J]. JOURNAL OF APPLIED PHYSICS,2005,98(4). |
| APA | Long, Y.,Zhang, ZY.,Wen, D.,Wu, GH.,Ye, RC.,...&Wan, FR.(2005).Phase transition processes and magnetocaloric effects in the Heusler alloys NiMnGa with concurrence of magnetic and structural phase transition.JOURNAL OF APPLIED PHYSICS,98(4). |
| MLA | Long, Y,et al."Phase transition processes and magnetocaloric effects in the Heusler alloys NiMnGa with concurrence of magnetic and structural phase transition".JOURNAL OF APPLIED PHYSICS 98.4(2005). |
入库方式： OAI收割
来源：物理研究所
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