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Defect Core Structures in Twisted Nematic and Twisted Chiral Liquid Crystals

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DOI: 10.4236/jmp.2013.42037    3,307 Downloads   5,449 Views Citations

ABSTRACT

The defect structures of s = ±1/2 twist disclinations in twisted nematic and twisted chiral liquid crystals have been investigated within the Landau-de Gennes theory numerically. Our results show that there exists eigenvalue exchange across the defect core of both the two models. The defect core is essentially biaxial and never isotropic. The defect centre is uniaxial and is surrounded by a strong biaxial region.

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X. Zhou, G. Zheng and Z. Zhang, "Defect Core Structures in Twisted Nematic and Twisted Chiral Liquid Crystals," Journal of Modern Physics, Vol. 4 No. 2, 2013, pp. 272-279. doi: 10.4236/jmp.2013.42037.

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