Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
65 (1994), S. 2681-2683
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The stability of in-layer dipolar order in a side-chain ferroelectric liquid crystalline polymer has been investigated by probing the optical birefringence produced by aligning the mesogenic side groups with a high magnetic field. The temperature dependence of the decay time associated with the mesogen relaxation from a state of saturated alignment obeys an Arrhenius law, with an activation energy two to three times higher than the typical value for low molecular weight liquid crystals. The exponent characterizing the relaxation process is found to be temperature-dependent in the ferroelectric smectic-C* phase, and approaches unity near the polymer glass transition. The implications of these results for nonlinear-optics applications are discussed. © 1994 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.112601
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