J. Phys. II France
Volume 6, Numéro 8, August 1996
Page(s) 1175 - 1182
DOI: 10.1051/jp2:1996101
J. Phys. II France 6 (1996) 1175-1182

On the Theory of Domain Walls in Planar Nematic Films

P. Schiller and F. Zeitler

Martin-Luther-Universität, Institut für Physikalische Chemie, Mühlpforte 1, 06108 Halle/Saale, Germany

(Received 8 January, revised 1 April 1996, accepted 24 April 1996)

The theory of simple domain walls in planar nematic films is reconsidered taking into account azimuthal director rotations additionally. A perturbation treatment is useful to derive analytical equations which are asymptotically valid in the limit of small distortion amplitudes. In comparison to previously known approaches a more complete description leads to a correction in the formula for the wall thickness. This correction also influences the shape of closed domains and causes an array of walls in materials with high elastic anisotropy.

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