| Co-NiO/FeNi双层膜的交换偏置效应 |
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| 引用本文： | 杨景海,曹宇明,王雅新,刘惠莲,张永军.Co-NiO/FeNi双层膜的交换偏置效应[J].吉林大学学报(理学版),2007,45(6):1003-1006. |
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| 作者姓名： | 杨景海 曹宇明 王雅新 刘惠莲 张永军 |
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| 作者单位： | 1. 中国科学院 长春光学精密机械与物理研究所, 长春 130033; 2. 中国科学院 研究生院, 北京 100049; 3. 吉林师范大学 凝聚态物理研究所, 吉林省 四平 136000 |
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| 基金项目： | 教育部科学技术研究重点项目
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吉林省科技厅科研项目
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吉林省杰出青年科学基金
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吉林师范大学博士启动基金 |
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| 摘 要： | 金属Co片和NiO靶材通过溅射得到Co-NiO薄膜, 当Co含量为25.2％时, Co-NiO/FeNi双层膜的偏置场HE最大, 是未掺入Co时NiO/FeNi偏置场的3倍. 分析表明,金属Co的团簇镶嵌在NiO基质中, 该结构可提高铁磁/反铁磁双层膜的偏置效应.
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| 关 键 词： | Co-NiO/FeNi双层膜 交换偏置 团簇 |
| 文章编号： | 1671-5489（2007）06-1003-04 |
| 收稿时间： | 2007-05-15 |
| 修稿时间： | 2007-05-15 |
Exchange Bias of Co-Doped NiO/FeNi Bilayer |
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| YANG Jing-hai,CAO Yu-ming,WANG Ya-xin,LIU Hui-lian,ZHANG Yong-jun.Exchange Bias of Co-Doped NiO/FeNi Bilayer[J].Journal of Jilin University: Sci Ed,2007,45(6):1003-1006. |
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| Authors: | YANG Jing-hai CAO Yu-ming WANG Ya-xin LIU Hui-lian ZHANG Yong-jun |
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| Institution: | 1. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100049, China; 3. The Institute of Condensed State Physics, Jilin Normal University, Siping 136000, Jilin Province, China |
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| Abstract: | Co-doped NiO inhomogeneous films were synthesized by sputtering metallic Co chips and NiO together and the exchange bias of Co-doped NiO/FeNi bilayers was investigated. When Co content was up to 25.2%, the exchange bias field HE of Co-doped NiO/FeNi bilayer at room temperature increased to the maximum which was about three times that of the undoped-bilayer. Analysis suggests that the nanometer-sized Co-metal clusters enchased in NiO matrix played an important role in the change of magnetic behavior for the bilayers. |
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| Keywords: | Co-doped NiO/FeNi bilayer exchange bias cluster |
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