J. Phys. II France
Volume 4, Number 2, February 1994
Page(s) 275 - 286
DOI: 10.1051/jp2:1994128
J. Phys. II France 4 (1994) 275-286

X-ray scattering by bicontinuous cubic phases

M. Clerc and E. Dubois-Violette

Laboratoire de Physique des Solides associé au CNRS, Bâtiment 510, Université Paris-Sud, 91405 Orsay Cedex, France

(Received 18 June 1993, received in final form 13 October 1993, accepted 28 October 1993)

Ia3d bicontinuous cubic phases are interpreted as constituted of a fluid film of constant thickness supported by the gyroid minimal surface. We first compute the gyroid structure factor. Then we decorate the surface by the film. We compute the diffracted intensities and compare to X-ray intensities measured in some lipid systems.

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