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Proceedings Paper

Topological defects in a nematic filled with colloid particles
Author(s): Serguey V. Shiyanovskii; O. V. Kuksenok; R. W. Ruhwandl; E. M. Terentjev
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Paper Abstract

We theoretically investigate topological constraints and the defect structure around a spherical body immersed in a uniform nematic liquid crystal. Depending on the strength of anchoring on the particle surface, there are three possibilities. At rigid anchoring WR/K >> 1, the inner surface constraint forces a disclination ring of a radius at approximately 1.2*R, with R the particle size. At a lower, critical value W* the disclination rings contracts to the surface and, for small anchoring, WR/K << 1, the director distribution is regular, defect-free.

Paper Details

Date Published: 7 February 1997
PDF: 6 pages
Proc. SPIE 2949, Imaging Sciences and Display Technologies, (7 February 1997); doi: 10.1117/12.266362
Show Author Affiliations
Serguey V. Shiyanovskii, Institute for Nuclear Research (Ukraine)
O. V. Kuksenok, Institute for Nuclear Research (Ukraine)
R. W. Ruhwandl, Univ. of Cambridge (United Kingdom)
E. M. Terentjev, Univ. of Cambridge (United Kingdom)


Published in SPIE Proceedings Vol. 2949:
Imaging Sciences and Display Technologies
Jan Bares; Christopher T. Bartlett; Paul A. Delabastita; Jose Luis Encarnacao; Nelson V. Tabiryan; Panos E. Trahanias; Arthur Robert Weeks, Editor(s)

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