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采用混合锚定非对称楔形液晶盒,导出了系统的吉布斯自由能.根据平衡态自由能最小的原理,利用变分的方法,得到了表面弹性能K24项存在时,指向矢分布满足的微分方程.通过求解方程,计算讨论了K24项对液晶指向矢分布的影响.结果表明K24项对楔形液晶盒指向矢分布的影响是不可忽视的.

参考文献

[1] Frank F C.On thetheory of liquid crystals[J].J.Chem.Soc.Faraday Trans.Ⅱ,1958,25:19-28.
[2] Nehring J,Saupe A.Elastic theory of uniaxial liquid crystals[J].J Chem.Phys.,1971,54(1):337-343.
[3] Pergamenshchik V M,Teixeira P I,Sluckin T J.Distortion induced by the surfacelike elastic term in a thin nematic liquid-crystal film[J].Phys.Rev.E,1993,48(2):1265-1271.
[4] Faetti S.On the surfacelike elastic contant:An experimental method to test different theoretical models[J].Liquid Crystals,1993,15(6):807-818.
[5] Guan Ronghua,Huai Junxia,Yang Guochen.Physical effects of the surface elastic term K13 on weak anchoring nematic liquid crystal cells[J].Liquid Crystals,2004,31(8):1083-1091.
[6] Guan Ronghua,Wang Cuiru,Yu Hui,et al.Influence of the surface elastic energy term K13 on the critical fields of liquid crystal cells and experimental measurement of k《'13》[J].Chin.Phys.,2005,14(2):386-392.
[7] Lavrentovich O D,Pergamenshchik V M.Stripe domain phase of a thin nematic film and the K13 divergence term[J].Phys.Rev.Lett.,1994,73(7):979-982.
[8] Kiselev A D,Reshetnyak V Yu.Influence of surface elasticity on periodic splay-twist Freedericksz transition in a neatie cell[J].Molecular Crystals and Liquid Crystals,1998,321(2):133-144.
[9] Yokoyama H.Density-functional theory of surfacelike elasticity of nematic liquid crystals[J].Phys.Revi.E,1997,55(3):2938-2957.
[10] 邢红玉,杨国琛,叶文江,等.表面弹性自由能K13项与楔形液晶盒中阈值厚度附近的指向矢分布[J].液晶与显示,2005,20(1):27-31.
[11] Sonin A A.The Surface Physics of Liquid Crtstals[M].United States:Gordon and Breach Publishers,1995.
[12] Sugimura A,Luckhurst G R,Ou-Yang Zhongcan.Director deformation of a twisted chiral nematic liquid crystal cell with weak anchoring boundaries[J].Phys.Rev.E,1995,52(1):681-689.
[13] 斯米尔诺夫.高等数学教程[M].北京:高等教育出版社,1958.
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