Surface energy of biaxial nematics

被引:1
作者
Liu, H [1 ]
机构
[1] Nanjing Normal Univ, Dept Phys, Nanjing 210097, Peoples R China
关键词
D O I
10.1080/0267829021000059900
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this paper, a form of surface energy for biaxial nematics is derived. The methods follow those for deriving Landau elastic energy Frank elastic energy for bulk nematics. The surface energy can also be derived in rotation matrix expansion. The result shows that in the first order approximation, there are four independent coefficients in the surface energy. When each of the three orthogonal directors of biaxial nematics coincides with its corresponding easy axis, the surface energy is linearly proportional to the order parameters. An application of this surface energy is discussed and possible experimental measurements of three linear combinations of the four coefficients are explored.
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收藏
页码:1513 / 1519
页数:7
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