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The European Physical Journal E

, Volume 2, Issue 4, pp 351–358 | Cite as

Molecular order in bilayer, anticlinic and ferroelectric smectic C mesophases

  • A. Carvalho
  • P.J. Sebastião
  • A. Ferraz
  • A.C. Ribeiro
  • H.T. Nguyen

Abstract.

In this work we present a proton NMR comparative study of the molecular order in the smectic C2 (\(\)), smectic C^* (\(\)) and anticlinic smectic C phases (\(\) and \(\)) of two liquid crystalline compounds. The second moments of the experimental proton NMR spectra are well explained taking into account two different molecular orientations models. From the analysis of our experimental results it was possible to estimate the tilt angles for all the smectic C phases studied in this work.

PACS. 61.30.Gd Orientational order of liquid crystals; electric and magnetic field effects on order – 76.60.-k Nuclear magnetic resonance and relaxation 

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Copyright information

© EDP Sciences, Springer-Verlag, Società Italiana di Fisica 2000

Authors and Affiliations

  • A. Carvalho
    • 1
  • P.J. Sebastião
    • 1
  • A. Ferraz
    • 1
  • A.C. Ribeiro
    • 1
  • H.T. Nguyen
    • 2
  1. 1.Centro de Física da Matéria Condensada, Av. Prof. Gama Pinto 2, 1699-003 Lisboa, Portugal and Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, PortugalPT
  2. 2.CNRS, Centre de Recherche Paul Pascal, Av. A. Schweitzer, F-33600 Pessac, FranceFR

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