Surface layer mode in the electro-optical response of planar SmC* samples of AFLC C8 tolane

Authors
Bourny, V Pavel, J Lorman, V Nguyen, HT
Citation
V. Bourny et al., Surface layer mode in the electro-optical response of planar SmC* samples of AFLC C8 tolane, FERROELECTR, 244(1-4), 2000, pp. 603-610
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS
ISSN journal
00150193 → ACNP
Volume
244
Issue
1-4
Year of publication
2000
Pages
603 - 610
Database
ISI
SICI code
0015-0193(2000)244:1-4<603:SLMITE>2.0.ZU;2-O
Abstract
In the SmC* phase of AFLC in planar geometry, a new contribution to the ele ctro-optical response was found. This mode which we propose to be called a "surface layer mode", appears with the occurrence of 2 pi-disclinations in the texture. Some evidences of the existence of this mode are given. A simp le model, taking into account a transformation of a pair of pi-disclination s on the surface into one 2 pi-disclination in the bulk, is discussed.