| 金属间化物Nd(Fe_(1-x)Co_x)_(10)V_2的磁性能机制 |
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| 引用本文： | 罗广圣,曾贻伟. 金属间化物Nd(Fe_(1-x)Co_x)_(10)V_2的磁性能机制[J]. 金属学报, 2002, 0(3) |
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| 作者姓名： | 罗广圣 曾贻伟 |
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| 作者单位： | 南昌大学化学与材料科学学院 南昌330047(罗广圣)，北京师范大学物理系 北京100875(曾贻伟) |
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| 基金项目： | 江西省自然科学基金资助项目1500147 |
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| 摘 要： | 通过X射线衍射.磁测量和M(?)ssbauer谱测定了Nd（Fe1-Cox）10V2的结构和磁性.结果表明,Nd（Fe1-xCox）10V2（x=0,0.05,0.10,0.15,0.20）化合物的晶体结构均为ThMn12型结构;随着 Co含量x的增大,晶格常数将单调减少.Co原子的替代将导致化合物各个Fe晶位上的磁超精细场值Bhf逐渐增加.Co部分取代Nd（Fe1-xCox）10V2中的Fe原子时.将择优占据8i铁晶位.取向样品NdFe10V2的热磁曲线和变温M(?)ssbauer谱研究结果表明.该化合物在T=120K条件下存在自旋重取向现象.
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| 关 键 词： | Nd（Fe1-xCox）10V2 择优占位 自旋重取向 饱和磁矩 M（?）ssbauer谱 |
MAGNETIC PROPERTY MECHANISM OF THE INTER-METALLIC COMPOUNDS Nd(Fe_(1-x)Co_x)_(10)V_2 |
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| LUO GuangshengCollege of Chemistry and Material Sciences,Nanchang University,Nanchang ZENG Yiwei. MAGNETIC PROPERTY MECHANISM OF THE INTER-METALLIC COMPOUNDS Nd(Fe_(1-x)Co_x)_(10)V_2[J]. Acta Metallurgica Sinica, 2002, 0(3) |
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| Authors: | LUO GuangshengCollege of Chemistry Material Sciences Nanchang University Nanchang ZENG Yiwei |
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| Affiliation: | LUO GuangshengCollege of Chemistry and Material Sciences,Nanchang University,Nanchang 330047ZENG YiweiDepartment of Physics,Beijing Normal University,Beijing 100875Correspondent: LUO Guangsheng,associate professor,Tel: |
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| Abstract: | The crystal structure and magnetic properties of Nd(Fe1-xCox)10V2 have been mea-sured by X-ray diffraction, magnetic properties measurements and Mossbauer spectroscopy methods. The following conclusions are obtained: all Nd(Fe1-xCox)10V2(x=0, 0.05, 0.10, 0.15, 0.20) compounds crystallize in ThMn12-type structure, the lattice constants decrease monotonically with increasing of Co atom concentration. Substitution of Co for Fe leads to a monotonic increase of the hyperfine in-teraction field Bhf on all Fe sites. Furthermore,the experiment results show that Co atom occupies preferentially 8i Fe site in Nd(Fe1-xCox)10V2 compounds.The experimental results of theromagnetic curves and Mossbauer spectroscopy at different temperatures indicate that there exists a spin reorien-tation at T=120 K in the oriented sample NdFe10V2. |
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| Keywords: | Nd(Fe1_xCox)1oV2 preferential occupation spin reorientation saturation atom moment Mossbauer spectroscopy |
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