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| Nd掺杂对La_(0.7-x)Nd_xSr_(0.3)MnO_3的结构及红外吸收谱和磁学性质的影响 | |
| 引用本文： | 李继萍,特古斯. Nd掺杂对La_(0.7-x)Nd_xSr_(0.3)MnO_3的结构及红外吸收谱和磁学性质的影响[J]. 内蒙古师范大学学报(自然科学版), 2011, 0(2) |
| 作者姓名： | 李继萍 特古斯 |
| 作者单位： | 内蒙古化工职业学院化学工程系;内蒙古师范大学物理与电子信息学院内蒙古自治区功能材料物理与化学重点实验室; |
| 基金项目： | 国家自然科学基金资助项目(50961010); 内蒙古自然科学重点项目(20080404Zd01) |
| 摘 要： | 采用固相反应法制备了钙钛矿型氧化物La0.7-xNdxSr0.3MnO3(x=0,0.05,0.10,0.15,0.2)多晶样品.X射线衍射(XRD)分析表明,随着钕离子掺杂浓度的增加,晶胞体积逐渐减小.样品表面形貌SEM图像显示,掺杂Nd的多晶样品的晶粒变小,而未掺杂的La0.7Sr0.3MnO3晶粒最大.红外吸收光谱测量显示,样品在574~602 cm-1范围内出现了吸收峰,且吸收峰的位置随掺杂Nd离子浓度的增加向低频方向偏移.样品的磁性质测量表明,掺杂稀土离子的半径及磁矩对La0.7Sr0.3MnO3磁电阻有明显的影响. |
| 关 键 词： | La0.7Sr0.3MnO3 晶体结构 红外吸收谱 磁性质 |
Effect of Nd Doping on the Structure,Infrared and Magnetic Properties of La_(0.7-x)Nd_xSr_(0.3)MnO_3 |
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| LI Ji-ping,O.Tegus. Effect of Nd Doping on the Structure,Infrared and Magnetic Properties of La_(0.7-x)Nd_xSr_(0.3)MnO_3[J]. Journal of Inner Mongolia Normal University(Natural Science Edition), 2011, 0(2) | |
| Authors: | LI Ji-ping O.Tegus |
| Affiliation: | LI Ji-ping1,O.Tegus2(1.Department of Chemical Engineering,Inner Mongolia Vocational College of Chemical Engineering,Hohhot 010010,China,2.Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials,College of Physics and Electronic Information,Inner Mongolia Normal University,Hohhot 010022,China) |
| Abstract: | The polycrystalline samples of La0.7-xNdxSr0.3MnO3(x=0,0.05,0.10,0.15,0.2) were prepared by solid state reaction method.X-ray diffraction(XRD) analysis indicates that the cell volume is gradually decreases with increasing of the Nd concentration.The surface morphologies of the samples were analyzed by Scanning Electron Microscope(SEM).The results show that the average grain sizes of the polycrystalline samples with Nd doping decrease,and the average grain size of La0.7Sr0.3MnO3 is the biggest.Infrared absor... |
| Keywords: | La0.7Sr0.3MnO3 crystal structure infrared absorption spectrum magnetic property |
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