Evidence of a Phenomenon of Epitaxy at the Interface between a Lamellar Lα Phase and a L3 Sponge

International audienceIn the quasiternary lyotropic system CpCl /brine /hexanol, the interface between the lamellar Lα and the “sponge” L3 phase adopts geometries characteristic of a tilted anchoring of the lamellar layers on the sponge phase. Quantitative measurements of this new phenomenon are performed at equilibrium. Additionally, the evolution of the characteristic distances dα and d3 of the two phases in the biphasic region with swelling variation was determined by x-ray scattering. Our results support the hypothesis of an epitaxial matching between the two phases