Journal
PHYSICAL REVIEW E
Volume 85, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.85.061704
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Funding
- Hungarian Research Funds [OTKA-K81250]
- NSF [DMR-0964765]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0964765] Funding Source: National Science Foundation
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The effect of director pretilt on the twist magnetic Freedericksz transition of nematics was investigated in a planar cell. The director configuration was calculated as a function of magnetic inductance. The dielectric and optical response of the nematic liquid crystal was numerically modeled. A dielectric measurement method for determining the elastic constant K-22 is presented. The influence of the conditions for the Mauguin effect is discussed. The theoretical predictions were confirmed by our experiments. Experimental data for all elastic constants of a bent-core nematic material are presented and discussed.
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