| 具有垂直各向异性(Pt/Co)n/FeMn多层膜的交换偏置 |
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| 引用本文： | 翟中海,滕 蛟,李宝河,王立锦,于广华,朱逢吾. 具有垂直各向异性(Pt/Co)n/FeMn多层膜的交换偏置[J]. 物理学报, 2006, 55(4): 2064-2068 |
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| 作者姓名： | 翟中海 滕 蛟 李宝河 王立锦 于广华 朱逢吾 |
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| 作者单位： | (1)北京科技大学物理与化学系，北京 100083; (2)北京科技大学物理与化学系，北京 100083;北京工商大学数理部，北京 100037; (3)北京科技大学物理与化学系，北京 100083;沈阳建筑大学理学院,沈阳 110168 |
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| 基金项目： | 国家自然科学基金(批准号：50471093)和北京市自然科学基金(批准号：2052014)资助的课 题. |
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| 摘 要： | 采用磁控溅射方法制备了以Pt为缓冲层和保护层的具有垂直各向异性(Pt/Co)n/ FeMn多层膜.研究结果表明，多层膜的垂直交换偏置场Hex和反铁磁层厚度的关 系与其具有平面各向异性的交换偏置场随反铁磁层厚度变化趋势相近.随着铁磁层调制周期 数的增加，垂直交换偏置场Hex相应减小，并且与铁磁层的调制周期数近似成反 比关系.(Pt/Co)3/FeMn的垂直交换偏置场Hex已经达到22.3kA/m.为关键词：交换偏置垂直各向异性多层膜
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| 关 键 词： | 交换偏置 垂直各向异性 多层膜 |
| 收稿时间： | 2005-07-27 |
| 修稿时间： | 2005-07-272005-12-13 |
Exchange bias with perpendicular anisotropy in (Pt/Co)n/FeMn multilayers |
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| Zhai Zhong-Hai,Teng Jiao,Li Bao-He,Wang Li-Jin,Yu Guang-Hua and Zhu Feng-Wu. Exchange bias with perpendicular anisotropy in (Pt/Co)n/FeMn multilayers[J]. Acta Physica Sinica, 2006, 55(4): 2064-2068 |
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| Authors: | Zhai Zhong-Hai Teng Jiao Li Bao-He Wang Li-Jin Yu Guang-Hua Zhu Feng-Wu |
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| Affiliation: | 1. Department of Material Physics and Chemistry, University of Science and Technology Beifing, Beijing 100083, China; 2.College of Science, Shenyang Jianzhu University, Shenyang 110168, China; 3. Department of Mathematics and Physics, Belting Technology and Business University, Beijing 100037, China |
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| Abstract: | In this paper, we report the observation of exchange bias in (Pt/Co)n /FeMn multilayer with perpendicular magnetic anisotropy. The samples were deposi ted on glass substrates by magnetron sputtering and capped with 2nm thick Pt lay er. Our results show that the relation between perpendicular exchange bias Hex of (Pt/Co)n/FeMn multilayers and the thickness of antiferro magnetic layer is similar to that in the case of in-plane exchange bias. He x is inversely proportional to the number of bilayer repeats. In the case of (Pt/Co)3/FeMn multilayers, perpendicular exchange bias Hex reachs 22.3kA/m. With insertion of 0.4nm Pt layer between Co layer and FeMn layer, Hex can reach 39.8kA/m. |
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| Keywords: | exchange bias perpendicular magnetic anisotropy multilayer |
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