Eur. Phys. J. E 4, 209-215
Lyotropic bicontinuous cubic phase single crystals investigated using high-resolved X-ray scattering
M. Impéror-Clerc and A.M. LevelutLaboratoire de Physique des Solides, C.N.R.S. U.M.R. 8502, Bât. 510, Université Paris-Sud, 91405 Orsay Cedex, France imperor@lps.u-psud.fr
(Received 4 May 2000)
Abstract
Single crystals of an
bicontinuous direct cubic phase formed
by a non-ionic surfactant in water are investigated using
high-resolved X-ray diffraction. The shape of the Bragg peaks
confirms the existence of a 3D long-range order inside the cubic
phase. A weak diffuse scattered intensity signal is measured very
near the Bragg peaks. We attribute this signal to thermal diffuse
scattering (TDS) and we give an estimation of the contribution of
elastic waves to this TDS.
61.30.-v - Liquid crystals.
61.10.-i - X-ray diffraction and scattering.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2001
