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http://hdl.handle.net/2289/3943Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Kundu, Brindaban | - |
| dc.contributor.author | Pratibha, R. | - |
| dc.contributor.author | Madhusudana, N.V. | - |
| dc.date.accessioned | 2010-07-22T09:27:38Z | - |
| dc.date.available | 2010-07-22T09:27:38Z | - |
| dc.date.issued | 2010-03-01 | - |
| dc.identifier.citation | European Physical Journal E, 2010, Vol.31, p145 | en |
| dc.identifier.issn | 1292-895X (Online) | - |
| dc.identifier.issn | 1292-8941 | - |
| dc.identifier.uri | http://hdl.handle.net/2289/3943 | - |
| dc.description | Restricted Access. | en |
| dc.description.abstract | We report measurements of the temperature variations of the optical birefringence in the nematic (N) and partial bilayer SmA (SmAd) phases in 4-n-octyloxy 4′ -cyanobiphenyl made of rod-like (R) molecules and five mixtures of this compound with 1,3-phenylene bis[4-(3-methylbenzoyloxy)] 4′ -n- dodecylbiphenyl 4′ -carboxylate, made of bent-core (BC) molecules. The birefringence decreases with the concentration x of the BC molecules but the macroscopic order parameter initially decreases upto 11mol% of BC molecules and subsequently increases with x . This is attributed to the possible formation of polar clusters of BC molecules. Orientation of BC molecules changes between the N and SmAd phases and the birefringence data in the two phases imply that the kink angle of the BC molecules is ∼ 90° rather than ∼ 110° as obtained from calculations which minimize the energy of the molecule. IR spectroscopic measurements on the mixture with 11mol% of BC molecules have been used to estimate the molecular order parameter S of the R molecules, and to provide additional support for a relatively small kink angle of BC molecules. | en |
| dc.language.iso | en | en |
| dc.publisher | Springer | en |
| dc.relation.uri | http://dx.doi.org/10.1140/epje/i2010-10556-8 | en |
| dc.rights | 2010 EDP Sciences /Società Italiana di Fisica/Springer | en |
| dc.title | Orientational order in liquid crystals exhibited by some binary mixtures of rod-like and bent-core molecules | en |
| dc.type | Article | en |
| Appears in Collections: | Research Papers (SCM) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2010_EPJE_31_145.pdf Restricted Access | Restricted Access | 598.61 kB | Adobe PDF | View/Open Request a copy |
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