Active and passive viscosities of a bent-core nematic liquid crystal
Active and passive viscosities of a bent-core nematic liquid crystal
| dc.contributor.author | Dhara, S. | |
| dc.contributor.author | Balaji, Y. | |
| dc.contributor.author | Ananthaiah, J. | |
| dc.contributor.author | Sathyanarayana, P. | |
| dc.contributor.author | Ashoka, V. | |
| dc.contributor.author | Spadlo, A. | |
| dc.contributor.author | Dabrowski, R. | |
| dc.date.accessioned | 2022-03-27T11:37:21Z | |
| dc.date.available | 2022-03-27T11:37:21Z | |
| dc.date.issued | 2013-03-29 | |
| dc.description.abstract | We report the measurements of active and passive viscosities of a bent-core nematic liquid crystal. The active viscosity is measured using a rheometer and the passive viscosities are measured by measuring the self-diffusion coefficient of a microsphere in the aligned sample. The effective active viscosity is larger and the effect of presmectic fluctuations are observed much higher than the N-Sm-C transition temperature than commonly seen in calamitic liquid crystals. The temperature dependence of passive viscosities is stronger than that of active viscosities. The self-diffusion of the microsphere is reduced and appears to be non-Gaussian as the N-Sm-C transition is approached. The study of Brownian fluctuations is useful to understand the smectic fluctuations in bent-core nematic liquid crystals. © 2013 American Physical Society. | |
| dc.identifier.citation | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. v.87(3) | |
| dc.identifier.issn | 15393755 | |
| dc.identifier.uri | 10.1103/PhysRevE.87.030501 | |
| dc.identifier.uri | https://link.aps.org/doi/10.1103/PhysRevE.87.030501 | |
| dc.identifier.uri | https://dspace.uohyd.ac.in/handle/1/14273 | |
| dc.title | Active and passive viscosities of a bent-core nematic liquid crystal | |
| dc.type | Journal. Article | |
| dspace.entity.type |
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