J. Phys. France 43, 1469-1474 (1982)
DOI: 10.1051/jphys:0198200430100146900

The influence of homeotropic and planar boundary conditions on the field induced cholesteric-nematic transition

W.J.A. Goossens

Philips Research Laboratories, Eindhoven, The Netherlands

Abstract
The field induced cholesteric-nematic transition is discussed for the case where the helical axis is parallel to the plane of the sample. Approximate solutions for the critical field are presented for both homeotropic and planar boundary conditions.

Résumé
On étudie la transition cholestérique-nématique induite par un champ électrique dans le cas où l'axe hélicoïdal est parallèle aux parois. On obtient des solutions approchées pour la valeur critique du champ électrique pour des conditions d'ancrage homéotropes et planaires.

PACS
6130G - Orientational order of liquid crystals; electric and magnetic field effects on order.
6470M - Transitions in liquid crystals.

Key words
cholesteric liquid crystals -- liquid crystal phase transformations -- nematic liquid crystals