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http://hdl.handle.net/2289/3486Full 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 | 2008-04-15T09:56:27Z | - |
| dc.date.available | 2008-04-15T09:56:27Z | - |
| dc.date.issued | 2007-12 | - |
| dc.identifier.citation | Physical Review Letters, 2007, Vol.99, 247802 | en |
| dc.identifier.issn | E-ISSN: 1079-7114 | - |
| dc.identifier.issn | P-ISSN: 0031-9007 | - |
| dc.identifier.uri | http://hdl.handle.net/2289/3486 | - |
| dc.description | Open Access. | en |
| dc.description.abstract | We report on two anomalous trends in the temperature dependences of the splay (K11) and bend (K33) elastic constants in the nematic (N) phase of mixtures of compounds with rodlike (R) and bent-core (BC) molecules: As the sample is cooled from the isotropic to N transition point, (i) K33 increases, attains a maximum value and then decreases, and (ii) close to the N to smectic A (SmA) transition point, K11 decreases sharply. At higher temperatures the bow axes of BC molecules are aligned along the director n^, strongly favoring a bend distortion of n^ as the orientational order parameter is increased. Close to the N-SmA transition point the smecticlike short-range order builds up, and the arrow axes of BC molecules are aligned along n^, facilitating a splay distortion of n^. A simple model calculation brings out the anomalous trend in K33. | en |
| dc.format.extent | 894171 bytes | - |
| dc.format.mimetype | application/pdf | - |
| dc.language.iso | en | en |
| dc.publisher | The American Physical Society | en |
| dc.relation.uri | http://dx.doi.org/10.1103/PhysRevLett.99.247802 | en |
| dc.rights | 2007 The American Physical Society | en |
| dc.title | Anomalous temperature dependence of elastic constants in the nematic phase of binary mixtures made of rodlike and bent-core molecules | en |
| dc.type | Article | en |
| Appears in Collections: | Research Papers (SCM) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2007 PRL V99 p247802.pdf | Open access | 873.21 kB | Adobe PDF | View/Open |
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