Vortexlike topological defects in nematic colloids: chiral colloidal dimers and 2D crystals.
We show that chiral ordering of the underlying complex fluid strongly influences defect formation and colloidal interactions. Nonsingular defect loops with a topological charge -2 are observed, with a cross section identical to hyperbolic vortices in magnetic systems. These loops are binding spontan...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2009
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| _version_ | 1826303865543196672 |
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| author | Tkalec, U Ravnik, M Zumer, S Musevic, I |
| author_facet | Tkalec, U Ravnik, M Zumer, S Musevic, I |
| author_sort | Tkalec, U |
| collection | OXFORD |
| description | We show that chiral ordering of the underlying complex fluid strongly influences defect formation and colloidal interactions. Nonsingular defect loops with a topological charge -2 are observed, with a cross section identical to hyperbolic vortices in magnetic systems. These loops are binding spontaneously formed pairs of colloidal particles and dimers, which are chiral objects. Chiral dimer-dimer interaction weakly depends on the chirality of dimers and leads to the assembly of 2D nematic colloidal crystals of pure or "mixed" chirality, intercalated with a lattice of nonsingular vortexlike defects. |
| first_indexed | 2024-03-07T06:09:11Z |
| format | Journal article |
| id | oxford-uuid:eee3610a-f0bb-476f-a6ba-72c511aeaf6f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:09:11Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:eee3610a-f0bb-476f-a6ba-72c511aeaf6f2022-03-27T11:36:10ZVortexlike topological defects in nematic colloids: chiral colloidal dimers and 2D crystals.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:eee3610a-f0bb-476f-a6ba-72c511aeaf6fEnglishSymplectic Elements at Oxford2009Tkalec, URavnik, MZumer, SMusevic, IWe show that chiral ordering of the underlying complex fluid strongly influences defect formation and colloidal interactions. Nonsingular defect loops with a topological charge -2 are observed, with a cross section identical to hyperbolic vortices in magnetic systems. These loops are binding spontaneously formed pairs of colloidal particles and dimers, which are chiral objects. Chiral dimer-dimer interaction weakly depends on the chirality of dimers and leads to the assembly of 2D nematic colloidal crystals of pure or "mixed" chirality, intercalated with a lattice of nonsingular vortexlike defects. |
| spellingShingle | Tkalec, U Ravnik, M Zumer, S Musevic, I Vortexlike topological defects in nematic colloids: chiral colloidal dimers and 2D crystals. |
| title | Vortexlike topological defects in nematic colloids: chiral colloidal dimers and 2D crystals. |
| title_full | Vortexlike topological defects in nematic colloids: chiral colloidal dimers and 2D crystals. |
| title_fullStr | Vortexlike topological defects in nematic colloids: chiral colloidal dimers and 2D crystals. |
| title_full_unstemmed | Vortexlike topological defects in nematic colloids: chiral colloidal dimers and 2D crystals. |
| title_short | Vortexlike topological defects in nematic colloids: chiral colloidal dimers and 2D crystals. |
| title_sort | vortexlike topological defects in nematic colloids chiral colloidal dimers and 2d crystals |
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