Orientational instability of a lyotropic nematic liquid crystal layer |
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Authors: | Email author" target="_blank">A?G?KaluginEmail author |
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Institution: | 1.Faculty of Mechanics and Mathematics, Leninskie Gory,Moscow State University,Moscow,Russia |
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Abstract: | The problem of periodic domain initiation in a thin lyotropic nematic liquid crystal layer is studied. This layer has a planar director initial orientation, but the anchoring energy is minimized by the homeotropic one. The periodic structures whose wave vector is perpendicular to the director exist during the director reorientation process from the planar orientation to the homeotropic one when the reorientation wave front appears. It is shown that the divergent terms of the Prank orientation elasticity energy plays an important role in this effect. The saddle-splay Prank constant and the anisotropic anchoring energy coefficient are estimated. |
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