We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Collective Relaxation Processes in Nonchiral Nematics.
- Authors
Yadav, Neelam; Panarin, Yuri P.; Jiang, Wanhe; Mehl, Georg H.; Vij, Jagdish K.
- Abstract
Nematic–nematic transitions in a highly polar nematic compound are studied, in thick cells in which the molecules are aligned parallel to the substrates but perpendicular to the applied electric field, using dielectric spectroscopy in the frequency range 1 Hz to 10 MHz over a wide temperature range. The studied compound displays three nematic phases under cooling from the isotropic phase: ubiquitous nematic N; high polarizability NX; and ferroelectric nematic NF. Two collective processes were observed. The dielectric strength and relaxation frequency of one of the processes P2 showed a dependence on the thickness of the cell. The process P1 is the amplitude mode, while the process P2 is the phason mode.
- Subjects
DIELECTRIC relaxation; DIELECTRIC strength; ELECTRIC fields; DIELECTRICS; NEMATIC liquid crystals; LIQUID crystals
- Publication
Crystals (2073-4352), 2023, Vol 13, Issue 6, p962
- ISSN
2073-4352
- Publication type
Article
- DOI
10.3390/cryst13060962