Absence of Scaling for the Intermediate Scattering Function of a Hard-Sphere Suspension: Static and Dynamic X-Ray Scattering from Concentrated Polystyrene Latex Spheres

Journal Article · Mon Jan 24 00:00:00 EST 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.84.785· OSTI ID:20215351

Lurio, L B; Lumma, D; Sandy, A R; Borthwick, M A; Falus, P; Mochrie, S G. J.; Pelletier, J F; Sutton, M; Regan, Lynne; Malik, A ^[1]

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1. and others

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 [P. N. Segre and P. N. Pusey, Phys. Rev. Lett. 77, 771 (1996)]. (c) 2000 The American Physical Society.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• OSTI ID: 20215351
• Journal Information: Physical Review Letters, Vol. 84, Issue 4; Other Information: PBD: 24 Jan 2000; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUSPENSIONS
HARD-SPHERE MODEL
X-RAY SPECTROSCOPY
SMALL ANGLE SCATTERING
POLYSTYRENE
LATEX
GLYCEROL
DIFFUSION
SCALING LAWS
EXPERIMENTAL DATA