Europhys. Lett.
Volume 75, Number 5, September 2006
Page(s) 771 - 777
Section Condensed matter: structural, mechanical and thermal properties
Published online 02 August 2006
Europhys. Lett., 75 (5), pp. 771-777 (2006)
DOI: 10.1209/epl/i2006-10180-y

Chiroclinic effect

M. Cepic

Jozef Stefan Institute - Jamova 39, 1000 Ljubljana, Slovenia and Faculty of Education, University of Ljubljana - Kardeljeva ploscad 16 1000 Ljubljana, Slovenia

received 23 May 2006; accepted 17 July 2006
published online 2 August 2006

The effect of a chiral dopant or chiral molecular properties on the polarly ordered smectic system made of achiral bent-core molecules is studied theoretically. Two phenomena are predicted: a) A non-tilted antiferroelectrically ordered system becomes tilted upon chiral doping. b) Magnitudes of the tilt and polarization differ in layers with opposite chiralities, if the synclinic antiferroelectric structure is stable. Both phenomena are induced by the chiral field of dopants or the chiral field of chiral bent-core molecules themselves. Therefore the name chiroclinic effect is suggested for the phenomena.

61.30.-v - Liquid crystals.
61.30.Dk - Continuum models and theories of liquid crystal structure.
61.30.Gd - Orientational order of liquid crystals; electric and magnetic field effects on order.

© EDP Sciences 2006