Abstract
Two electroconvection (EC) pattern morphologies-a cellular and a subsequent roll pattern-have been detected in the same frequency range in a nematic with positive permittivity and conductivity anisotropies. The frequency dependences of the onset voltages and critical wave numbers have been determined both for homeotropic and planar alignments. It has been proven that both pattern morphologies have a dielectric time symmetry. We also discuss possible sources for the pattern formation in the frame of both the isotropic (Felici-Benard) mechanism, as well as the standard model of EC.
| Original language | English |
|---|---|
| Article number | 020702 |
| Journal | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics |
| Volume | 81 |
| Issue number | 2 |
| DOIs | |
| State | Published - 25 Feb 2010 |
| Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics
- Statistical and Nonlinear Physics
- Statistics and Probability
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