Dielectric properties of 4'-n-alkyl-4-cyanobiphenyls in their nematic phases

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/914

Full metadata record

DC Field	Value	Language
dc.contributor.author	Ratna, B.R.	-
dc.contributor.author	Shashidhar, R.	-
dc.date.accessioned	2005-12-27T11:00:02Z	-
dc.date.available	2005-12-27T11:00:02Z	-
dc.date.issued	1976	-
dc.identifier.citation	Pramana, 1976, Vol. 6, p278-283.	en
dc.identifier.issn	0304-4289	-
dc.identifier.uri	http://hdl.handle.net/2289/914	-
dc.description.abstract	The principal dielectric constants of the pentyl to octyl derivatives of 4'-n-alkyl-4-cyanobiphenyl have been measured as functions of temperature in their nematic and isotropic phases. All the compounds exhibit a strong positive dielectric anisotropy due to the presence of a large dipole moment along the major molecular axis. The principal dielectric constants ε11 and εL as well as the anisotropy ∆ε decrease with increasing alkyl chain length. The experimental value of έ = ⅓( ε11+ 2εL) decreases with decreasing temperature, and is throughout less than the extrapolated isotropic value, in conformity with the model of antiferro- electric short range order propored by Madhusudana and Chandrasekhar.	en
dc.format.extent	224392 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Indian Academy of Sciences, Bangalore, India.	en
dc.rights	Indian Academy of Sciences, Bangalore, India.	en
dc.subject	Nematic liquid crystals	en
dc.subject	Dielectric anisotropy	en
dc.subject	Cyanobiphenyl	en
dc.title	Dielectric properties of 4'-n-alkyl-4-cyanobiphenyls in their nematic phases	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

Files in This Item:

File	Description	Size	Format
1976 Pramana V6 p278.pdf	6p.	219.13 kB	Adobe PDF	View/Open