The Fluid-Like and Critical Behavior of the Isotropic-Nematic Transition Appearing in Linear and Non-linear Dielectric Studies

• Authors: A. Drozd-Rzoska , S.J. Rzoska , J. Zioło
• Languages of publication: EN

Abstracts

EN

A short review of literature and the authors' experimental results for the pretransitional behavior in the isotropic phase of nematogens is given. The paper also presents new results of non-linear dielectric effect and dielectric permittivity measurements in the broad temperature range. Results obtained show significant advantages of non-linear dielectric effect and dielectric permittivity for studying pretransitional properties in liquid crystalline materials. The paper contains a comprehensive comparison of the experiment with predictions of the mean-field model and the fluid-like description. The presented analysis strongly supports the image of the isotropic phase as a complex liquid resulting from vicinity of the fluid-like, "nematic-isotropic", critical point.

Keywords

EN

64.70.Md; 64.30.+t; 77.22.Ch

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 98
• Issue: 5
• Pages: 637-643

Dates

published

2000-11

Contributors

author

A. Drozd-Rzoska

• August Chełkowski Institute of Physics, Silesian University Uniwersytecka 4, 40-007 Katowice, Poland

author

S.J. Rzoska

• August Chełkowski Institute of Physics, Silesian University Uniwersytecka 4, 40-007 Katowice, Poland

author

J. Zioło

• August Chełkowski Institute of Physics, Silesian University Uniwersytecka 4, 40-007 Katowice, Poland