Effect of director pretilt on field induced periodic distortions in nematics

Kini, U.D.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2229

Full metadata record

DC Field	Value	Language
dc.contributor.author	Kini, U.D.	-
dc.date.accessioned	2007-04-03T11:09:27Z	-
dc.date.available	2007-04-03T11:09:27Z	-
dc.date.issued	1997	-
dc.identifier.citation	Molecular Crystals and Liquid Crystals, 1997, Vol.308, p43-76	en
dc.identifier.issn	1058-725X	-
dc.identifier.uri	http://hdl.handle.net/2289/2229	-
dc.description	Restricted Access	en
dc.description.abstract	This work reports a theoretical study on the linear threshold of static director distortions In a rigidly anchored nematic sample subjected to the simultaneous actions of electric (E) and magnetic (B) fields applied along certain symmetry directions with respect to the initial uniform director alignment no. The results mainly concern a material having susceptibility anisotropies of opposite signs (c, > 0, l, < 0). The deformation above the electric threshold may be homogeneous (HD) or periodic (PD) depending upon material and geometric parameters. PD is quenched when no is tilted sufficiently away from the homeotropic or when B is impressed away from E. For a given director pretilt, the direction of post threshold periodicity changes continuously with the magnetic tilt. At a given magnetic tilt, the PD threshold parameters exhibit a discontinuous change when the director pretilt is varied. Phase diagrams in different planes of the parameter space demarcate the regions of existence of PD and HD. The importance of elastic anisotropy in determining the nature of PD emerges from a study of a hypothetical material having two equal curvature elastic constants.	en
dc.format.extent	1083799 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Gorden and Breach Science Publishers.	en
dc.relation.uri	http://dx.doi.org/10.1080/10587259708045094	en
dc.rights	1997 OPA (Overseas Publishers Association) N.V.	en
dc.subject	Electric and magnetic field effects on liquid crystals	en
dc.subject	orientational transitions in liquid cyrstals	en
dc.subject	curvature elasticity of liquid crystals	en
dc.subject	boundary value and eigenvalue problems	en
dc.subject	numerical simulation	en
dc.subject	solution of differential equations	en
dc.subject	stability and perturbation methods	en
dc.title	Effect of director pretilt on field induced periodic distortions in nematics	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

Files in This Item:

File	Description	Size	Format
1997 MCLC V308 p43.pdf Restricted Access	Restricted Access	1.06 MB	Adobe PDF	View/Open Request a copy

Show simple item record