【摘要】 对二阶和四阶Legondre多项式构造的取向分布函数进行了仔细研究,发现该函数适于描述二维凝聚体系中单轴取向分子的四种分布模式,给出了这四种分布模式对应的序参数〈P₂〉,〈P₄〉的取值区域,具体讨论了序参数〈P₂〉,〈P₄〉改变时,分布图形的相应变化.更多还原

【Abstract】 In this paper,the property of orientation distribution function composed of se-cond and fourth legendre polynomials was studied.It was pointed that this functioncan he used to describe four kinds of orientation distribution models.Correspondingto the four models,four regions of order parameters<P₂>and<P₄>were given.Theorientation distribution polar graphs were observed when the order parameters werechanging.更多还原