| (Pt3Co)1-xNix合金薄膜的结构、磁性和磁光特性研究 |
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| 引用本文： | 周 健,荀 坤,沈德芳,夏国强,郑玉祥,陈良尧.(Pt3Co)1-xNix合金薄膜的结构、磁性和磁光特性研究[J].物理学报,1999,48(13):217-223. |
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| 作者姓名： | 周 健 荀 坤 沈德芳 夏国强 郑玉祥 陈良尧 |
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| 作者单位： | (1)复旦大学物理系，上海 200433; (2)中国科学院上海冶金研究所，上海 200050 |
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| 基金项目： | 国家自然科学基金（批准号：69777016）资助的课题. |
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| 摘 要： | 采用直流溅射的方法，在Pt3Co合金靶上加贴Ni片，把（Pt3Co)1-xNix合金薄膜中非磁性原子与磁性原子的比率从3：1调制到1：1.通过高角X射线衍射谱和磁性的研究，发现<111>织构至少在0.33—0.50的Ni成分范围内不是引起垂直磁各向异性的主要原因.在此基础上研究了(Pt3Co)1-xNix合金薄膜的磁光特性.研究表明，适量Ni合金化（x=0.43)可以获得较低的(Pt3Co)1-xNix合金薄膜居里温度，同时保持较高的垂直磁各向异性、较大的矫顽力和蓝波长下较高的Kerr转角，从而为PtCoNi合金薄膜的实用化提供了实验参考.
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| 收稿时间： | 1999-06-10 |
The Study of the Structural, Magnetic and Magneto-Optical Properties of (Pt3Co)1-xNix Alloy Films |
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| Zhou Jian,Xun Kun,Shen De-Fang,Xia Guo-Qiang,Zheng Yu-Xiang and Chen Liang-Yao.The Study of the Structural, Magnetic and Magneto-Optical Properties of (Pt3Co)1-xNix Alloy Films[J].Acta Physica Sinica,1999,48(13):217-223. |
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| Authors: | Zhou Jian Xun Kun Shen De-Fang Xia Guo-Qiang Zheng Yu-Xiang and Chen Liang-Yao |
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| Abstract: | The ratio of non-magnetic to magnetic atoms was adjusted from 3:1 to 1:1 within the (Pt3Co)1-xNix system by sticking Ni chips to the Pt3Co target. X-ray diffraction and magnetic results showed that perpendicular magnetic anisotropy was not caused by <111> texture at least in the Ni content range of 0.33—0.50. Furthermore, the effect of the Ni addition to the CoPt3 alloy films on their magnetic and magneto-optical propertical were investigated. The result shows that satisfactory Curie temperature TC, cohercivity Hc and Kerr rotation can be simultaneously obtained by selecting suitable Ni content (x=0.43) in the (Pt3Co)1-xNix system. This work provides an experimental basis for the application of PtCoNi alloy films. |
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