| (Ni0.81Fe0.19)1－xCrx作为种子层对NiFe/PtMn双层膜交换偏置的影响 |
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| 引用本文： | 李岩,陈庆永,姜宏伟.(Ni0.81Fe0.19)1－xCrx作为种子层对NiFe/PtMn双层膜交换偏置的影响[J].物理学报,2006,55(5):2543-2547. |
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| 作者姓名： | 李岩 陈庆永 姜宏伟 |
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| 作者单位： | 首都师范大学物理系，北京 100037 |
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| 基金项目： | 北京市科委科技发展基金;北京市教委科技发展基金 |
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| 摘 要： | 将NiFe/PtMn双层膜生长在(Ni0.81Fe0.19)1-xCrx种子层材料上，通过改变种子层中Cr的原子含量，系统的研究了NiFe/PtMn双层膜中PtMn晶粒尺寸和织构对交换偏置的影响.对退火270℃，5h后的NiFe/PtMn双层膜磁性的研究表明,PtMn织构强弱对交换偏置场的影响不明显，而PtMn的晶粒尺寸是影响交换偏置场的主要因素，PtMn颗粒的相干长度在11.3nm左右时得到了较大的交换偏置场.
关键词：
NiFe/PtMn双层膜
交换偏置场
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| 关 键 词： | NiFe/PtMn双层膜 交换偏置场 |
| 文章编号： | 1000-3290/2006/55（05）2543-05 |
| 收稿时间： | 10 22 2005 12:00AM |
| 修稿时间： | 2005-10-222005-12-26 |
The influence of (Ni0.81 Fe0.19)1-x Crx seed layer on the exchange bias of NiFe/PtMn bilayers |
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| Li Yan,Chen Qing-Yong,Jiang Hong-Wei.The influence of (Ni0.81 Fe0.19)1-x Crx seed layer on the exchange bias of NiFe/PtMn bilayers[J].Acta Physica Sinica,2006,55(5):2543-2547. |
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| Authors: | Li Yan Chen Qing-Yong Jiang Hong-Wei |
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| Institution: | Department of Physics, Capital Normal University, Beijing 100037, China |
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| Abstract: | By adjusting the Cr concentration, the effect of texture and grain size on the exchange bias of NiFe/PtMn bilayers with (Ni0.81Fe0.19)1-xCrx seed were systematically investigated. After annealing the bilayers at 270℃ for 5h, it was found that the difference in the texture of PtMn layer is not the cause of the variation in the exchange bias field. The exchange bias field depends strongly on the grain size of PtMn layer. When the grain size is around 11.3nm, the exchange field attains its maximum. |
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| Keywords: | NiFe/PtMn bilayers exchange bias |
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