Charged (+/- 2 pi)-twist disclinations in ferroelectric liquid crystals

Authors
Lejcek, L
Citation
L. Lejcek, Charged (+/- 2 pi)-twist disclinations in ferroelectric liquid crystals, CZEC J PHYS, 51(6), 2001, pp. 581-591
Citations number
17
Categorie Soggetti
Physics
Journal title
CZECHOSLOVAK JOURNAL OF PHYSICS
ISSN journal
00114626 → ACNP
Volume
51
Issue
6
Year of publication
2001
Pages
581 - 591
Database
ISI
SICI code
0011-4626(200106)51:6<581:C(2PDI>2.0.ZU;2-P
Abstract
The electrostatic charge of (+/-2 pi)-twist disclinations in ferroelectric chiral smectic C liquid crystals is introduced as an approximation in order to simplify the evaluation of the electrostatic self-energy of disclinatio n. As an example, electrostatic charges of (+/-2 pi)-twist disclinations in an infinite sample are evaluated. Screening effects of free charges in a m aterial and of the ferroelectric structure surrounding the disclination are taken into account by introducing a phenomenological depolarization factor .