J. Phys. II France
Volume 6, Numéro 5, May 1996
Page(s) 639 - 655
DOI: 10.1051/jp2:1996203
J. Phys. II France 6 (1996) 639-655

Field Induced Chiral-Achiral Transitions in Liquid Crystals

N. Andal and G. S. Ranganath

Raman Research Institute, Bangalore-560080, India

(Received 10 July 1995, revised 1 December 1995, accepted 8 February 1996)

We have considered chiral-achiral phase transitions that can occur in some liquid crystals. This study deals with such transformations induced by external electric and magnetic fields. We discuss phase changes mediated by disclinations, single solitons, soliton lattices and those occurring without any defect. Some unusual aspects of these transitions such as reentrance, occurrence of tricritical points and Lifshitz points have been highlighted.

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