| Sm填充skutterudite化合物中填充原子扰动效应研究 |
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| 引用本文： | 刘桃香,唐新峰,李涵,苏贤礼,张清杰.Sm填充skutterudite化合物中填充原子扰动效应研究[J].物理学报,2008,57(11):7078-7082. |
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| 作者姓名： | 刘桃香 唐新峰 李涵 苏贤礼 张清杰 |
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| 作者单位： | 武汉理工大学材料复合新技术国家重点实验室，武汉 430070 |
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| 基金项目： | 国家重点基础研究发展规划(973)项目，国家自然科学基金( |
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| 摘 要： | 结合Rietveld结构解析和拉曼光谱对单相多晶的Sm原子填充的skutterudite化合物SmyFexCo4-xSb12进行了分析.Rietveld精确化结果表明：SmyFexCo4-xSb12化合物具有填充式skutterudite结构，Sm原
关键词：
方钴矿
Rietveld结构解析
拉曼散射
扰动
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| 关 键 词： | 方钴矿 Rietveld结构解析 拉曼散射 扰动 |
| 收稿时间： | 2007-12-26 |
Study on rattling of filling atom in Sm filled-skutterudite compounds |
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| Liu Tao-Xiang,Tang Xin-Feng,Li Han,Su Xian-Li,Zhang Qing-Jie.Study on rattling of filling atom in Sm filled-skutterudite compounds[J].Acta Physica Sinica,2008,57(11):7078-7082. |
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| Authors: | Liu Tao-Xiang Tang Xin-Feng Li Han Su Xian-Li Zhang Qing-Jie |
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| Abstract: | The single-phase polycrystalline Sm-filled skutterudites SmyFexCo4-xSb12 were investigated by Rietveld refinement and Raman scattering spectral analysis. The results of Rietveld refinement clarify that the SmyFexCo4-xSb12 compound has a filled skutterudite structure. The thermal parameter of Sm is larger than that of Sb, Fe and Co, and the Sb-Sb bond length of SmyFexCo4-xSb12 is longer than that of unfilled skutterudites. The results of Raman scattering study show a shift and broadening of the Sb4 ring breathing modes. These results indicate that Sm atoms fill the Sb-icosahedron voids of the skutterudites and rattle in them. |
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| Keywords: | filled skutterudites Rietveld refinement Raman scattering rattling |
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