| Ni50Mn37In13磁驱动形状记忆合金薄膜中的交换偏置 |
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| 引用本文： | 周广宏,潘 旋,朱雨富,王寅岗. Ni50Mn37In13磁驱动形状记忆合金薄膜中的交换偏置[J]. 稀有金属材料与工程, 2014, 43(1): 130-134 |
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| 作者姓名： | 周广宏 潘 旋 朱雨富 王寅岗 |
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| 作者单位： | 淮阴工学院 江苏省介入医疗器械研究重点实验室，江苏 淮安 223003 |
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| 基金项目： | 国家自然科学基金 (51175212)；江苏省自然科学基金 (BK2012668) |
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| 摘 要： | 研究了磁场冷却前后Ni50Mn37In13磁驱动形状记忆合金薄膜在低温下的磁学行为。结果表明:磁场冷却后的Ni50Mn37In13薄膜在10 K温度下表现出一定的交换偏置效应。在特征温度Tf以下,零场冷却状态下的Ni50Mn37In13合金处于超自旋玻璃态,而经磁场冷却后发生了从自旋玻璃态向磁有序的超铁磁结构的变化。超铁磁结构中的超铁磁团簇与反铁磁基体构成了铁磁/反铁磁耦合,从而导致了交换偏置的产生。
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| 关 键 词： | 交换偏置 磁驱动形状记忆合金 薄膜 |
| 收稿时间： | 2013-01-18 |
Exchange Bias in Ni50Mn37In13 Magnetic Shape Memory Alloy Thin Films |
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| Zhou Guanghong,Pan Xuan,Zhu Yufu and Wang Yingang. Exchange Bias in Ni50Mn37In13 Magnetic Shape Memory Alloy Thin Films[J]. Rare Metal Materials and Engineering, 2014, 43(1): 130-134 |
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| Authors: | Zhou Guanghong Pan Xuan Zhu Yufu Wang Yingang |
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| Affiliation: | Jiangsu Provincial Key Laboratory of Interventional Medical Devices, Huaiyin Institute of Technology, Huaian 223003, China |
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| Abstract: | The magnetic behaviors of the magnetic-field cooled Ni50Mn37In13 film at low temperature was investigated. The results show that below the characteristic temperature Tf, the alloy presents a super spin glass (SSG) state when cooled in the absence of a magnetic field; however, it will transform to the super ferromagnetic (SFM) structure after magnetic field cooling. The SFM clusters in the SFM structure are coupled with the antiferromagnetic matrix, resulting in the exchange bias |
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| Keywords: | exchange bias magnetic shape memory alloy thin film |
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