Structure studies of the nematic phase formed by bent-core molecules

N. Vaupotic, J. Szydlowska, M. Salamonczyk, A. Kovarova, J. Svoboda, M.A. Osipov, D. Pociecha, E. Gorecka

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Abstract

In recent years there are several reports showing that bent-core mesogenic molecules are able to form biaxial nematic phase in which molecular rotation around the long molecular axis is strongly hindered. The x-ray pattern with azimuthally split signals at low angle region of diffraction is usually given as evidence for the biaxial nematic phase. We show experimentally and theoretically that such x-ray pattern is due to the local smectic-C fluctuations ('cybotactic' groups) in the uniaxial nematic phase.
Original languageEnglish
JournalPhysical Review E
Volume80
Issue number3
DOIs
Publication statusPublished - Sep 2009

Keywords

  • structure studies
  • nematic phase
  • bent-core molecules

Cite this

Vaupotic, N., Szydlowska, J., Salamonczyk, M., Kovarova, A., Svoboda, J., Osipov, M. A., Pociecha, D., & Gorecka, E. (2009). Structure studies of the nematic phase formed by bent-core molecules. Physical Review E, 80(3). https://doi.org/10.1103/PhysRevE.80.030701