Influence of long-range Van der Waals forces on the scattering of light in liquid crystals
Dzyaloshinskii I.E., Dmitriev S.G., Katz E.I.
The long-range character of the Van der Waals forces leads to nonanalytic (in the scattering vector q) increments to the scattering intensity /, with 1/q2 replaced by a formula of the type /~l/(q2+ajq|3).