摘要
以算数平均求解有效离子半径为基础,通过容忍因子极值方法与化合价守恒两种方法共同获得SrFe0.5Nb0.5O3双钙钛矿Sr空位的最大值.结果表明,容忍因子极值方法获得的SrFe0.5Nb0.5O3双钙钛矿Sr空位最大值为0.2836,但是考虑到化合价守恒之后,Sr空位最大值确定为0.25.Sr空位最大值的获得有助于我们理解Sr空位调控物理性能的最大程度.
Based on the the effective ionic radius calculated by the weighted averages method, the maximum content of Sr vacancy in double perovskites SrFe 0.5 Nb 0.5 O 3 were obtained by two methods including the tolerance factor extremum method and the balancing valences method. The results indicated that the maximum content of Sr vacancy in double perovskites SrFe 0.5 Nb 0.5 O 3 obtained by the tolerant factor extremum method was 0.283 6, but the value correct by the balancing valences method was 0.25, the maximum content of Sr vacancy helps us to understand the maximum degree of physical properties controlled by Sr vacancies.
作者
武清
纪登辉
Wu Qing;Ji Denghui(Liupanshui Normal University,Couege of Physics and Information Engineering,Liupanshui,Guizhou 55300;The Key Laboratory of Opt-electrical Information Technology of Liupanshui City,Liupanshui,Guizhou 55300)
出处
《物理通报》
2018年第9期122-123,129,共3页
Physics Bulletin
基金
六盘水师范学院大学生科研项目,编号:LPSSYDXS17064
六盘水师范学院高层次人才科研启动基金LPSSYKYJJ201404
国家自然科学基金,编号:11504078
贵州省教育厅自然科学重点研究项目,编号:KY2015379
贵州省科技厅联合基金,编号:LH[2014]7449
