| Ni80Fe20/Cu基磁性多层膜和自旋阀的微结构 |
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| 引用本文： | 王文东,孙海平,张泽.Ni80Fe20/Cu基磁性多层膜和自旋阀的微结构[J].电子显微学报,2000,19(1):14-22. |
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| 作者姓名： | 王文东 孙海平 张泽 |
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| 作者单位： | Beijing Laboratory of Electron Microscopy,Institute of Physics,Chinese Academy ofSciences,Beijing,100080,P.R.China |
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| 基金项目： | 中国科学院资助项目，， |
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| 摘 要： | 用高分辨电子显微学及平行电子能量损失谱方法研究了Ni80Fe20/Cu基磁性多层膜和自旋阀的显微结构.高分辨像显示,磁性多层膜及自旋阀均具有沿薄膜生长方向的柱晶结构.Ni,Fe,Cu和Mn元素的成分分布图显示,柱晶内仍保持完整的层状结构.沿薄膜生长方向的自旋阀元素分布曲线分析表明,NiFe层中的Ni元素沿柱晶晶界向相邻Cu层扩散.讨论了这些低维磁电子学材料的显微结构对磁输运性能的影响.
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Microstructure in Ni80Fe20/Cu magnetic multilayers and spin valve |
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| WANG Wen-dong,SUN Hai-ping,ZHANG Ze.Microstructure in Ni80Fe20/Cu magnetic multilayers and spin valve[J].Journal of Chinese Electron Microscopy Society,2000,19(1):14-22. |
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| Authors: | WANG Wen-dong SUN Hai-ping ZHANG Ze |
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| Abstract: | Microstructure of Ni80Fe20/Cu based magnetic multilayers (MLs) and spin valve (SV) was investigated by using High Resolution Electron Microscopy (HREM) and Parallel Electron Energy Loss Spectrum (EELS). HREM images exhibit a crystalline columnar structure of Ni80Fe20/Cu in MLs and SV films. The elemental mapping of Ni, Fe, Cu and Mn in MLs and SV films show that the multi-layer nature is maintained in the columnar structure in entire films. However, line profile of Ni maps along the direction of film growth shows that Ni in NiFe layer diffuses towards Cu layer along the columnar grain boundaries in SV. The relationship between magnetic transport properties and microstructure was discussed. |
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