High order nonlinear electrophoresis in a nematic liquid crystal
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866914717606346752 |
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| author | Rajabi, Mojtaba Turiv, Taras Li, Bing-Xiang Baza, Hend Golovaty, Dmitry Lavrentovich, Oleg D. |
| author_facet | Rajabi, Mojtaba Turiv, Taras Li, Bing-Xiang Baza, Hend Golovaty, Dmitry Lavrentovich, Oleg D. |
| contents | Electrophoresis is the motion of particles relative to a surrounding fluid driven by a uniform electric field. In conventional electrophoresis, the electrophoretic velocity grows linearly with the applied field. Nonlinear effects with a quadratic speed vs field dependence are gaining research interest since an alternating current field could drive them. Here we report on the giant nonlinearity of electrophoresis in a nematic liquid crystal in which the speed grows with the fourth and sixth powers of the electric field. The mechanism is attributed to the shear thinning of the nematic environment induced by the moving colloid. The observed giant nonlinear effect dramatically enhances the efficiency of electrophoretic transport. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_11049 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | High order nonlinear electrophoresis in a nematic liquid crystal Rajabi, Mojtaba Turiv, Taras Li, Bing-Xiang Baza, Hend Golovaty, Dmitry Lavrentovich, Oleg D. Soft Condensed Matter Electrophoresis is the motion of particles relative to a surrounding fluid driven by a uniform electric field. In conventional electrophoresis, the electrophoretic velocity grows linearly with the applied field. Nonlinear effects with a quadratic speed vs field dependence are gaining research interest since an alternating current field could drive them. Here we report on the giant nonlinearity of electrophoresis in a nematic liquid crystal in which the speed grows with the fourth and sixth powers of the electric field. The mechanism is attributed to the shear thinning of the nematic environment induced by the moving colloid. The observed giant nonlinear effect dramatically enhances the efficiency of electrophoretic transport. |
| title | High order nonlinear electrophoresis in a nematic liquid crystal |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2403.11049 |