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  • Title: Absence of scaling for the intermediate scattering function of a hard-sphere suspension: static and dynamic x-ray scattering from concentrated polystyrene latex spheres.
    Author: Lurio LB, Lumma D, Sandy AR, Borthwick MA, Falus P, Mochrie SG, Pelletier JF, Sutton M, Regan L, Malik A, Stephenson GB.
    Journal: Phys Rev Lett; 2000 Jan 24; 84(4):785-8. PubMed ID: 11017372.
    Abstract:
    X-ray photon correlation spectroscopy and small-angle scattering measurements are presented of the dynamics and structure of concentrated suspensions of charge-stabilized polystyrene latex spheres dispersed in glycerol, for volume fractions from 3% to 52%. The static structures of the suspensions show essentially hard-sphere behavior, and the short-time dynamics shows good agreement with predictions for the wave-vector-dependent collective diffusion coefficient. However, the intermediate scattering function is found to violate a scaling behavior found previously for a sterically stabilized hard-sphere suspension.
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