| LaCo13-xAlx快淬薄带的结构与磁性 |
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| 引用本文： | 徐世峰,王野,王文全,徐钦英,邢冰冰,陈东风.LaCo13-xAlx快淬薄带的结构与磁性[J].吉林大学学报(理学版),2006,44(6):972-975. |
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| 作者姓名： | 徐世峰 王野 王文全 徐钦英 邢冰冰 陈东风 |
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| 作者单位： | 1. 吉林大学 物理学院, 长春 130021; 2. 长春理工大学 理学院大学物理基础教学部, 长春 130022; 3. 中国原子能科学研究院, 北京 102413 |
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| 摘 要： | 用快淬工艺合成并得到立方NaZn13结构的LaCo13-xAlx （1.2≤x≤2.4）系列三元金属间化合物, XRD测量结果表明, 在1.2≤x≤2.4内, 快淬速度为30 m/s时制备出的快淬薄带均具有立方NaZn13型结构. 用振动样品磁强计（VSM）和超导量子磁强计（SQUID）对快淬薄带的磁性进行研究. 由于无磁性的Al原子对Co原子的稀释作用, 使得低温饱和磁矩随Al含量的增加而降低, 实际测定的饱和磁矩比稀释模型的下降速度快, 表明加入金属Al不仅减少了Co原子的数量, 同时也降低了Co原子的磁矩.
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| 关 键 词： | LaCo13 快淬条带 磁性 刚性模型 |
| 文章编号： | 1671-5489(2006)06-0972-04 |
| 收稿时间： | 2005-12-12 |
| 修稿时间： | 2005年12月12 |
Structure and Magnetic Properties of Melt-spun LaCo13-x Alx Ribbons |
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| XU Shi-feng,WANG Ye,WANG Wen-quan,XU Qin-ying,XING Bing-bing,CHEN Dong-feng.Structure and Magnetic Properties of Melt-spun LaCo13-x Alx Ribbons[J].Journal of Jilin University: Sci Ed,2006,44(6):972-975. |
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| Authors: | XU Shi-feng WANG Ye WANG Wen-quan XU Qin-ying XING Bing-bing CHEN Dong-feng |
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| Institution: | 1. College of Physics, Jilin University, Changchun 130021, China; 2. Department of Foundation Teaching of College Physics, School of Science, Changchun University of Science and Technology, Changchun 130022, China;3. China Institute of Atomic Energy, Beijing 102413, China |
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| Abstract: | LaCo_(13-x)Al_x ribbons were made by means of melt spinning technique at an optimum Cu wheel(velocity) of 30 m/s.Structural and magnetic properties of LaCo_(13-x)Al_x compounds were investigated by using(X-ray) diffraction and magnetic measurements.It was found that all the compounds are almost of a single phase with the cubic NaZn_(13) structure.The lattice parameters increase monotonically with increasing Al content for all the compounds investigated.The saturation magnetization M_s decreases with increasing Al content.(LaCo_(13-x)Al_x) compounds are good soft magnetic materials with almost no remanence and coercivity. |
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| Keywords: | LaCo13 |
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