Influence of flexoelectricity on electrohydrodynamic instabilities in nematics under AC fields

Madhusudana, N.V.; Raghunathan, V.A.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2997

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DC Field	Value	Language
dc.contributor.author	Madhusudana, N.V.	-
dc.contributor.author	Raghunathan, V.A.	-
dc.date.accessioned	2007-06-19T09:49:33Z	-
dc.date.available	2007-06-19T09:49:33Z	-
dc.date.issued	1988	-
dc.identifier.citation	Molecular Crystals and Liquid Crystals Letters, 1988, Vol.5, p201-209	en
dc.identifier.issn	0140-6566	-
dc.identifier.uri	http://hdl.handle.net/2289/2997	-
dc.description	Restricted Access.	en
dc.description.abstract	We develop a one-dimensional theory of electrohydrodynamic instabilities in nematics under AC excitation by incorporating the flexoelectric terms. The results account for the following observations which were not adequately explained earlier: (1) the occurrence of oblique rolls (OR) at a thre- shold voltage Vth (v) up to a certain well defined frequency v which depends on the conductivity of the sample, (2) the occurrence of OR at voltages > Vth at which normal rolls are seen for some frequency range vc > v > vo, (3) the observation of 'chevronsf in the dielectric regime and (4) the occurrence of 'longitudi- nal' rolls with a field threshold for materials with a negative dielectric anisotropy close to the nematic - smectic transition point.	en
dc.format.extent	267448 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Gordon and Breach Science Publishers.	en
dc.rights	1988 OPA (Overseas Publishers Association) N.V.	en
dc.title	Influence of flexoelectricity on electrohydrodynamic instabilities in nematics under AC fields	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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