| 金属间化合物Nd(Fe1-xCox)10V2的结构和磁性研究 |
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| 引用本文： | 罗广圣,曾贻伟.金属间化合物Nd(Fe1-xCox)10V2的结构和磁性研究[J].稀土,2002,23(2):23-25. |
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| 作者姓名： | 罗广圣 曾贻伟 |
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| 作者单位： | 1. 南昌大学,化学与材料科学学院,江西,南昌,330047
2. 北京师范大学,物理系,北京,100875 |
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| 基金项目： | 江西省自然科学基金资助项目 ( 995 0 0 35 ) |
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| 摘 要： | 通过 X射线衍射和磁测量等手段对金属间化合物 Nd(Fe1 - x Cox) 1 0 V2 的结构和磁性进行了研究。结果表明 ,金属间化合物 Nd(Fe1 - x Cox) 1 0 V2 (x=0 ,0 .0 5 ,0 .1,0 .15 ,0 .2 )的晶体结构均为 Th Mn1 2 型结构 ;随着 Co含量 x的增大 ,晶格常数 a、c和晶胞体积 V将单调减小 ,居里温度 Tc呈单调增大 ,饱和磁化强度 Ms逐渐增加。取向样品Nd Fe1 0 V2 的 X射线衍射和变温穆斯堡尔谱研究结果表明该化合物在 T=12 0 K条件下存在自旋重取向现象。
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| 关 键 词： | Nd(Fe1-xCox)10V2 晶体结构 居里温度 饱和磁化强度 自旋重取向 |
| 文章编号： | 1004-0277(2002)02-0023-04 |
| 修稿时间： | 2001年5月23日 |
Structure and Magnetic Properties of Intermetallic Compounds Nd(Fe1-xCox)10V2 |
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| LUO Guang-sheng ,ZENG Yi-wei.Structure and Magnetic Properties of Intermetallic Compounds Nd(Fe1-xCox)10V2[J].Chinese Rare Earths,2002,23(2):23-25. |
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| Authors: | LUO Guang-sheng ZENG Yi-wei |
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| Affiliation: | LUO Guang-sheng 1,ZENG Yi-wei 2 |
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| Abstract: | The crystal structure and magnetic properties of intermetallic compounds Nd(Fe 1-xCo x) 10V 2 were studied by X-ray diffraction and magnetic measurements methods.The following conclusions were obtained:All intermetallic compounds Nd(Fe 1-xCo x) 10V 2(x=0,0.05,0.1,0.15,0.2) crystallize in ThMn 12-type structure,the lattice parameters a,c and unit-cell volume V all decrease monotonicly with the increasing of Co atom content x,Curie temperature Tc exist a monotonic increasing with Co atom content x,and the saturation magnetization Ms increase gradually with Co atom content x. The experimental results of X-ray diffraction and Mossbauer spectroscopy at different temperature indicate that there exists a spin reorientation at T=120K in the oriented sample NdFe 10V 2. |
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| Keywords: | Nd(Fe 1-xCo x) 10V 2 crystal structure curie temperature saturation magnetization spin reorientation |
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