Fe掺杂La_(0.67)Ca_(0.33)MnO_3体系的晶体结构研究  

Structure Study of Fe-doped Effect on La-(0.67)Ca_(0.33)MnO_3 Systems

作　　者：刘伟[1,2] 刘栓江[2] 

机构地区：[1]华中科技大学,湖北武汉430000 [2]安阳工学院,河南安阳455000

出　　处：《信阳师范学院学报（自然科学版）》2009年第2期205-208,共4页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(60571063)

摘　　要：采用固相反应法制备了系列铁掺杂稀土锰基氧化物La0.67Ca0.33Mn1-xFexO3(其中0≤x≤0.1)样品,利用X射线衍射(XRD)对该样品的晶体结构进行了表征.结果表明:在整个替代范围内,样品单相性很好,呈正交相结构,说明铁离子完全进入了晶格内部,铁离子对Mn位的替代是有效的.A series of Fe-doped Manganese oxide materials La0.67Ca0.33Mn1-xFexO3 （x =0, 0.05, 0. 1, 0. 15, 0.2） were prepared by standard solid reaction method. The samples were characterized by X-ray diffraction （XRD）. The results showed that the samples have a single phase and are orthorhombic structure, indicating that Fe irons entered into the lattice and substituted Mn ions effectively.

关 键 词：固相反应法 锰氧化物 X射线衍射(XRD) 晶体结构 

分 类 号：O483[理学—固体物理]