Interpretation of Relaxation Times in the ldquo;Electrichyphen;Field Effect on Critical Opalescencerdquo;

摘要

The relaxation time characterizing the response of concentration fluctuations in a binary mixture to the application of an electric field is related to the free relaxation of concentration fluctuations. Examination of light scattered by such systems in the vicinity of the critical mixing point indicates that the change in the turbidity of the fluid with time cannotbe related to the diffusion coefficient as simply as is the change in the intensity with time of the light scattered through a given angle which is related to the diffusion coefficientDand change in the wave vectorkby a factor explpar;thinsp;minus;thinsp;2Dk2trpar;.