| Co/Co3O4双层膜中的交换偏置 |
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| 引用本文： | 刘惠莲,杨景海,王雅新,杨丽丽,张永军. Co/Co3O4双层膜中的交换偏置[J]. 四川师范大学学报(自然科学版), 2007, 30(5): 623-625 |
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| 作者姓名： | 刘惠莲 杨景海 王雅新 杨丽丽 张永军 |
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| 作者单位： | 吉林师范大学,凝聚态物理研究所,吉林,四平,136000;中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033;吉林师范大学,凝聚态物理研究所,吉林,四平,136000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);吉林省科技发展计划;吉林省杰出青年计划基金 |
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| 摘 要： | 在磁控溅射系统中利用Co靶和Co3O4靶制备了Co/Co3O4双层膜.振动样品磁强计(VSM)结果显示在测量温度高于Co3O4的奈耳温度时,交换偏置场HE仍然存在,多功能光电子能谱(XPS)分析表明在靠近Co层一侧Co3O4层被还原成一薄层的CoO.当Co3O4层的厚度低于3.5 nm时,Co3O4完全被还原成CoO.
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| 关 键 词： | 交换偏置 Co/Co3O4双层膜 VSM XPS |
| 文章编号： | 1001-8395（2007）05-0623-03 |
| 收稿时间： | 2007-03-05 |
| 修稿时间： | 2007-03-05 |
Exchange Bias of Bilayer Co/Co3O4 |
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| LIU Hui-lian,YANG Jing-hai,Wang Ya-xin,YANG Li-li,ZHANG Yong-jun. Exchange Bias of Bilayer Co/Co3O4[J]. Journal of Sichuan Normal University(Natural Science), 2007, 30(5): 623-625 |
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| Authors: | LIU Hui-lian YANG Jing-hai Wang Ya-xin YANG Li-li ZHANG Yong-jun |
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| Affiliation: | 1. The Institute of Condensed State Physics, Jilin Normal University, Siping 136000, Jilin ; 2. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, Jilin |
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| Abstract: | The bilayer Co/Co3O4 is prepared by sputtering Co and Co/Co3O4targets. The magnetic properties of the samples are investigated by VSM. The measurement shows that the exchange field exists even above the Neel temperature of Co/Co3O4. XPS analysis show very thin film of CoO between Co and Co/Co3O4, resulting from the reduction of Co/Co3O4 by Co. Further investigation shows that theCo/Co3O4 film is reduced to CoO completely when the thickness of Co/Co3O4 is below 3.5 nm. |
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| Keywords: | VSM XPS |
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