Dielectric response of the B2 phase

Heiko Schmalfuss; Wolfgang Weissflog; Anton Hauser; Horst Kresse

doi:10.1117/12.385667

12 May 2000 Dielectric response of the B₂ phase

Heiko Schmalfuss, Wolfgang Weissflog, Anton Hauser, Horst Kresse

Proceedings Volume 4147, Liquid Crystals: Chemistry, Physics, and Applications; (2000) https://doi.org/10.1117/12.385667
Event: XIII International Conference on Liquid Crystals: Chemistry, Physics, and Applications, 1999, Krynica Zdroj, Poland

Abstract

A compound consisting of banana-shaped molecules was synthesized and well purified. The sample shows the B₂ phase which was characterized by dielectric spectroscopy. Two relaxation ranges were detected. The high frequency one, related to the reorientation about the long molecular axis, was observed in the isotropic phase, too. The increments point to a strong positive dipole correlation in the B₂ state. There are arguments that low frequency mechanism can not be connected with the reorientation about the short molecular axis. AFM-investigations give no hints to a super- structure. Therefore, this absorption was related to a collective response of ferroelectric clusters.

Citation Download Citation

Heiko Schmalfuss, Wolfgang Weissflog, Anton Hauser, and Horst Kresse "Dielectric response of the B₂ phase", Proc. SPIE 4147, Liquid Crystals: Chemistry, Physics, and Applications, (12 May 2000); https://doi.org/10.1117/12.385667

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