Determination of same changes in rotational potentials between ferro-and antiferroelectric phases

Pawel Perkowski; Zbigniew Raszewski; Jerzy Kedzierski; Wiktor Piecek; Jolanta Rutkowska; Jerzy Zielinski; Roman Dabrowski; W. J. Drzewinski

doi:10.1117/12.581077

1 September 2004 Determination of same changes in rotational potentials between ferro-and antiferroelectric phases

Pawel Perkowski, Zbigniew Raszewski, Jerzy Kedzierski, Wiktor Piecek, Jolanta Rutkowska, Jerzy Zielinski, Roman Dabrowski, W. J. Drzewinski

Author Affiliations +

Proceedings Volume 5565, XV Conference on Liquid Crystals; (2004) https://doi.org/10.1117/12.581077
Event: XV Conference on Liquid Crystals, 2003, Zakopane, Poland

Abstract

Rotational potential of molecule in smectic phases, introduced by Zeks, includes two important parts: dipolar as well as quadrupolar ones. The first part is valid for chiral molecules only, whereas the second one is important for chiral and achiral molecules. The question arises: "Whether shape of rotational potential changes when the phase transition between SmC* and SmC_A* appears?" In our opinion, close to the temperature of phase transition (FLC-AFLC) magnitudes of both, dipolar and quadrupolar parts change. Quadrupolar coupling is more important for antiferroelectric phase, while dipolar factor overwhelms quadrupolar one, for ferroelectric phase.

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Pawel Perkowski, Zbigniew Raszewski, Jerzy Kedzierski, Wiktor Piecek, Jolanta Rutkowska, Jerzy Zielinski, Roman Dabrowski, and W. J. Drzewinski "Determination of same changes in rotational potentials between ferro-and antiferroelectric phases", Proc. SPIE 5565, XV Conference on Liquid Crystals, (1 September 2004); https://doi.org/10.1117/12.581077

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