热漫散射贡献的高能电子衍射吸收结构因子的Doyle-Turner解析表述  

THE ANALYTIC DOYLE-TURNER REPRESENTATION OF HIGH ENERGY ELECTRON ABSORPTIVE STRUCTURE FACTORS

作　　者：彭练矛[1] 任罡[1] 

机构地区：[1]中国科学院北京电子显微镜实验室,北京2724信箱北京100080

出　　处：《物理学报》1996年第8期1344-1349,共6页Acta Physica Sinica

基　　金：国家自然科学基金;国家杰出青年科学基金资助的课题

摘　　要：给出了一种数值计算高能电子衍射吸收结构因子的方法,并利用模拟退火结合保温相变以及线性最小二乘拟合等算法,对所计算出的吸收结构因子数值进行了含10个参数的Doyle-Turner解析表述的拟合,作为示例,给出Be,Al As,Ag,Au等5个元素的拟合结果和精度。A numerical method is given for calculating the high energy electron absorptive structure factors. The numerical results so obtained are fitted with the analytic Doyle-Turner form using combined least-square and simulated annealing methods. As an illustration for the fitting, we have given results for five elements Be, Al, As, Ag and Au. In particular we have given the relative and absolute error curves for Al.

关 键 词：结构因子 热漫散射 高能电子衍射 

分 类 号：O481.3[理学—固体物理]