Onsager model for the structure of rigid rods confined on a spherical surface.
Onsager model for the structure of rigid rods confined on a spherical surface.
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DOI：
10.1103/physrevlett.108.057801
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发表时间：
2012-01
影响因子：
8.6
通讯作者：
Wuyang Zhang;Ying Jiang;Jeff Z. Y. Chen
中科院分区：
文献类型：
--
作者：
Wuyang Zhang;Ying Jiang;Jeff Z. Y. Chen
最近的研究表明，一个单层的自避免硬杆局限在一个球形表面上可能会显示一个分布纹理对应的splay，网球，矩形，或切割和旋转splay对称性。我们研究的基础上，一个广义的Onsager模型，其中包括排斥体积和熵的影响。数值解表明，张开状态，平均杆平行于球面上的纵向线排列，是唯一的稳定状态。
Recent studies have suggested that a monolayer of self-avoiding hard rods confined on a spherical surface may display a distribution texture corresponding to splay, tennis-ball, rectangle, or cut-and-rotate splay symmetries. We investigate the system on the basis of a generalized Onsager model which includes both excluded-volume and entropic effects. The numerical solution indicates that the splay state, where on average rods line up in parallel to the longitudinal lines on the spherical surface, is the only stable state.