| Nd0.5Sr0.4Pb0.1Mn0.96Fe0.04O3微观结构的中子衍射 |
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| 引用本文： | 薛艳杰,张莉,陈娜,肖红文,陈东风,鲁毅,李庆安,成昭华. Nd0.5Sr0.4Pb0.1Mn0.96Fe0.04O3微观结构的中子衍射[J]. 原子能科学技术, 2005, 39(5): 395-398 |
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| 作者姓名： | 薛艳杰 张莉 陈娜 肖红文 陈东风 鲁毅 李庆安 成昭华 |
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| 作者单位： | 1. 中国原子能科学研究院核物理研究所,北京,102413
2. 中国科学院物理研究所磁学国家重点实验室,北京,100080 |
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| 摘 要： | 采用固相反应法制备了混价钙钛矿型锰氧化物多晶样品Nd0.5Sr0.4Pb0.1Mn0.96Fe0.04O3,在室温下进行了中子粉末衍射测量并用Rietveld峰形精修程序Fullprof2k对实验数据进行了拟合。结果表明:Nd0.5Sr0.4Pb0.1Mn0.96Fe0.04O3样品具有正交的GdFeO3型结构,空间群为Pnma,Nd(Sr、Pb)原子占据4c晶位,Mn(Fe)原子占据4b晶位,O原子分别占据4c和8d两个不等价的晶位,并得到了MnO6八面体中Mn—O—Mn键角和Mn—O键的键长。
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| 关 键 词： | 钙钛矿型锰氧化物 中子粉末衍射 晶体结构 |
| 文章编号： | 1000-6931（2005）05-0395-04 |
| 收稿时间： | 2003-12-28 |
| 修稿时间： | 2003-12-282004-04-01 |
Neutron Diffraction on Micro-Structure of Nd0.5Sr0.4Pb0.1Mn0.96Fe0.04O3 |
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| XUE Yan-jie,ZHANG Li,CHEN Na,XIAO Hong-wen,CHEN Dong-feng,LU Yi,LI Qing-an,CHENG Zhao-hua. Neutron Diffraction on Micro-Structure of Nd0.5Sr0.4Pb0.1Mn0.96Fe0.04O3[J]. Atomic Energy Science and Technology, 2005, 39(5): 395-398 |
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| Authors: | XUE Yan-jie ZHANG Li CHEN Na XIAO Hong-wen CHEN Dong-feng LU Yi LI Qing-an CHENG Zhao-hua |
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| Affiliation: | 1. China Institute of Atomic Energy, P, O. Box 275 30, Beijing 102413, China; 2.State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | The mixed valence perovskite-type manganite polycrystalline sample(Nd_(0.5)Sr_(0.4)Pb_(0.1))Mn_(0.96)Fe_(0.04)O_(3) was prepared using a standard solid-state reaction method.The powder neutron diffraction pattern was collected at room temperature,and the data were fitted using Rietveld profile refinement program.The Nd_(0.5)Sr_(0.4)Pb_(0.1)Mn_(0.96)(Fe_(0.04)O_(3)) sample exhibits the orthorhombic GdFeO_(3) structure.The space group is Pnma.(Nd(Sr,Pb)) atoms occupy 4c sites,Mn(Fe) atoms occupy 4b sites,O atoms occupy 4c and 8d sites,respectively.The bond angles of Mn-O-Mn and bond lengths of Mn-O in the MnO_(6) octahedra are obtained. |
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| Keywords: | perovskite-type manganite neutron powder diffraction crystal structure |
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