节点文献
La2/3Ca1/3Mn1-xCrxO3（x=0.0,0.1）晶体结构的中子衍射研究
Crystal Structure Study on La2/3Ca1/3Mn1-xCrxO3（x=0.0,0.1） by Neutron Diffraction
【摘要】 采用传统高温固相反应法合成钙钛矿型多晶样品。在室温下分别测量了La2/3Ca1/3Mn1-xCrxO3(x=0.0,0.1)的中子粉末衍射谱,采用Rietveld峰形精修方法对衍射数据进行拟合,得到样品晶胞参数和原子坐标,根据原子坐标计算了与稀土锰氧化物宏观磁性能密切相关的锰氧键的键长和键角。
【Abstract】 Polycrystalline samples of the perovskite-type manganites La2/3Ca1/3Mn1-xCrxO3(x=0.0,0.1) were synthesized by traditional solid state reaction method.The neutron powder diffraction patterns were measured at room temperature for the synthesized polycrystalline sample.The diffraction data were fitted by means of Rietveld profile refinement,and the atomic positions and the lattice parameters were obtained.The Mn—O bond length and Mn—O—Mn angle closely related to the magnetic properties of manganites were calculated according to the atomic positions.
【关键词】 中子衍射；
钙钛矿型锰氧化物；
晶体结构；
【Key words】 neutron diffraction； perovskite-type manganites； crystal structure；
【Key words】 neutron diffraction； perovskite-type manganites； crystal structure；
- 【文献出处】 原子能科学技术 ,Atomic Energy Science and Technology , 编辑部邮箱 ,2008年11期
- 【分类号】O571.56
- 【被引频次】1
- 【下载频次】105