M. Carpineti et M. Giglio, TRANSITION FROM SEMIORDER TO DISORDER IN THE AGGREGATION OF DENSE COLLOIDAL SOLUTIONS, Physical review letters, 70(24), 1993, pp. 3828-3831
By using low-angle static light scattering we study the aggregation of
dense colloidal solutions under diffusion limited (DLCA) and reaction
limited cluster aggregation (RLCA) conditions. While it has been rece
ntly shown that DLCA surprisingly leads to a semiordered state, we sho
w here that any order is lost under RLCA conditions. While in the firs
t case a scattering peak at finite wave vector q is observed, in the s
econd the scattered peak always occurs at q = 0.