An active hydroelastic liquid crystal phase of a fluttering ferroelectric nematic
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916543405752320 |
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| author | Chen, Xi Pecinovsky, Cory Korblova, Eva Glaser, Matthew A. Radzihovsky, Leo Maclennan, Joseph E. Walba, David M. Clark, Noel A. |
| author_facet | Chen, Xi Pecinovsky, Cory Korblova, Eva Glaser, Matthew A. Radzihovsky, Leo Maclennan, Joseph E. Walba, David M. Clark, Noel A. |
| contents | Polarization flutter, produced by an applied AC electric field drives an equilibrium ferroelectric nematic ($\mathrm{N_F}$) liquid crystal (LC) through a transition into a dissipative active ferroelectric nematic state exhibiting strong elasto-hydrodynamic intermolecular interaction. In such a fluttering ferroelectric, the typical equilibrium $\mathrm{N_F}$ textural features adopted to reduce electrostatic energy, such as preferences for director bend, and alignment of polarization parallel to LC/air interfaces, are overcome, giving way to nonequilibrium conjugate structures in which director splay, and alignment of polarization normal to $\mathrm{N_F}$/air interfaces are preferred. Viewing the latter textures as those of an active nematic phase reveals that self-organization to reduce effective viscosity and resulting dissipation generates a flow-driven apparent nematic elasticity and interface structuring that dominates equilibrium LC elastic and surface forces. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_19061 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | An active hydroelastic liquid crystal phase of a fluttering ferroelectric nematic Chen, Xi Pecinovsky, Cory Korblova, Eva Glaser, Matthew A. Radzihovsky, Leo Maclennan, Joseph E. Walba, David M. Clark, Noel A. Soft Condensed Matter Polarization flutter, produced by an applied AC electric field drives an equilibrium ferroelectric nematic ($\mathrm{N_F}$) liquid crystal (LC) through a transition into a dissipative active ferroelectric nematic state exhibiting strong elasto-hydrodynamic intermolecular interaction. In such a fluttering ferroelectric, the typical equilibrium $\mathrm{N_F}$ textural features adopted to reduce electrostatic energy, such as preferences for director bend, and alignment of polarization parallel to LC/air interfaces, are overcome, giving way to nonequilibrium conjugate structures in which director splay, and alignment of polarization normal to $\mathrm{N_F}$/air interfaces are preferred. Viewing the latter textures as those of an active nematic phase reveals that self-organization to reduce effective viscosity and resulting dissipation generates a flow-driven apparent nematic elasticity and interface structuring that dominates equilibrium LC elastic and surface forces. |
| title | An active hydroelastic liquid crystal phase of a fluttering ferroelectric nematic |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2412.19061 |