Activity induced nematic order in isotropic liquid crystals
We use linear stability analysis to show that an isotropic phase of elongated particles with dipolar flow fields can develop nematic order as a result of their activity. We argue that ordering is favoured if the particles are flow-aligning and is strongest if the wavevector of the order perturbation...
| Váldodahkkit: | , , , , |
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| Materiálatiipa: | Journal article |
| Giella: | English |
| Almmustuhtton: |
Springer Nature
2020
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| _version_ | 1826271499808407552 |
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| author | Santhosh, S Nejad, MR Doostmohammadi, A Yeomans, J Thampi, SP |
| author_facet | Santhosh, S Nejad, MR Doostmohammadi, A Yeomans, J Thampi, SP |
| author_sort | Santhosh, S |
| collection | OXFORD |
| description | We use linear stability analysis to show that an isotropic phase of elongated particles with dipolar flow fields can develop nematic order as a result of their activity. We argue that ordering is favoured if the particles are flow-aligning and is strongest if the wavevector of the order perturbation is neither parallel nor perpendicular to the nematic director. Numerical solutions of the hydrodynamic equations of motion of an active nematic confirm the results. The instability is contrasted to the well-known hydrodynamic instability of an ordered active nematic. |
| first_indexed | 2024-03-06T21:57:38Z |
| format | Journal article |
| id | oxford-uuid:4d726972-b982-4a0b-9ed2-039e88311ed6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:57:38Z |
| publishDate | 2020 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:4d726972-b982-4a0b-9ed2-039e88311ed62022-03-26T15:55:39ZActivity induced nematic order in isotropic liquid crystalsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4d726972-b982-4a0b-9ed2-039e88311ed6EnglishSymplectic ElementsSpringer Nature2020Santhosh, SNejad, MRDoostmohammadi, AYeomans, JThampi, SPWe use linear stability analysis to show that an isotropic phase of elongated particles with dipolar flow fields can develop nematic order as a result of their activity. We argue that ordering is favoured if the particles are flow-aligning and is strongest if the wavevector of the order perturbation is neither parallel nor perpendicular to the nematic director. Numerical solutions of the hydrodynamic equations of motion of an active nematic confirm the results. The instability is contrasted to the well-known hydrodynamic instability of an ordered active nematic. |
| spellingShingle | Santhosh, S Nejad, MR Doostmohammadi, A Yeomans, J Thampi, SP Activity induced nematic order in isotropic liquid crystals |
| title | Activity induced nematic order in isotropic liquid crystals |
| title_full | Activity induced nematic order in isotropic liquid crystals |
| title_fullStr | Activity induced nematic order in isotropic liquid crystals |
| title_full_unstemmed | Activity induced nematic order in isotropic liquid crystals |
| title_short | Activity induced nematic order in isotropic liquid crystals |
| title_sort | activity induced nematic order in isotropic liquid crystals |
| work_keys_str_mv | AT santhoshs activityinducednematicorderinisotropicliquidcrystals AT nejadmr activityinducednematicorderinisotropicliquidcrystals AT doostmohammadia activityinducednematicorderinisotropicliquidcrystals AT yeomansj activityinducednematicorderinisotropicliquidcrystals AT thampisp activityinducednematicorderinisotropicliquidcrystals |