Structure and magnetic properties of stress-induced martensites in ferromagnetic shape memory alloy Mn2NiGa
文献类型：期刊论文
| 作者 | Li, M ; Zhu, ZY ; Li, M ; Yu, SD ; Cui, QL ; Zhou, Q ; Chen, JL ; Wu, GH |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2009 |
| 卷号 | 58期号:5页码:3479 |
| 关键词 | FIELD-INDUCED STRAINS SYSTEM |
| ISSN号 | 1000-3290 |
| 通讯作者 | Wu, GH (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China. |
| 中文摘要 | In-situ high pressure X-ray diffraction experiments on Heusler-type ferromagnefic shape memory alloy Mn2NiGa under pressure up to 40 GPa have been carried out by using diamond anvil cell device with synchrotron radiation source, and magnetic measurements have also been performed on uninstalled samples by using vibration sample magnetometer. At ambient pressure Mn2NiGa has body centered cubic structure. Two phase transitions in Mn2NiGa were observed during high pressure experiments. The first at about 0.77 GPa is belong to martensitic transformation, and the second at about 20 GPa is isostructural transformation between two different martensites. Meanwhile, a lot of defects and distortion of lattice were generated in martensites due to pressurization. Consequently, coercive force of stress-induced martensites rises up to 204 kA/m and it is almost ten times larger than that of thermo-induced martensites. Pressure processes also make saturation magnetization of martensites decrease rapidly, which reveals the obvious defect effect. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [50671034]; National Basic Research Program of China [2001CB711201, 2005CB724400] |
| 语种 | 中文 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53491]  |
| 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 | Li, M,Zhu, ZY,Li, M,et al. Structure and magnetic properties of stress-induced martensites in ferromagnetic shape memory alloy Mn2NiGa[J]. ACTA PHYSICA SINICA,2009,58(5):3479. |
| APA | Li, M.,Zhu, ZY.,Li, M.,Yu, SD.,Cui, QL.,...&Wu, GH.(2009).Structure and magnetic properties of stress-induced martensites in ferromagnetic shape memory alloy Mn2NiGa.ACTA PHYSICA SINICA,58(5),3479. |
| MLA | Li, M,et al."Structure and magnetic properties of stress-induced martensites in ferromagnetic shape memory alloy Mn2NiGa".ACTA PHYSICA SINICA 58.5(2009):3479. |
入库方式： OAI收割
来源：物理研究所
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