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〈P_2〉,〈P_4〉的取值区域,具体讨论了序参数〈P_2〉,〈P_4〉改变时,分布图形的相应变化.
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<P_2>and<P_4>were given.Theorientation distribution polar graphs were observed when the order parameters werechanging.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1993年第2期200-205,共6页
Acta Physico-Chimica Sinica
基金
国家科学技术委员会基础性研究重大关键项目资助
关键词
二维凝聚体系
取向分布函数
Two-dimensional condensed phase
Order parameters
Orientation distribution function
Orientation distribution polar graph
