Physical Review Letters, 15 April 1996, vol.76, (no.16):3017-20.
Abstract: We propose a model for concentrated emulsions based on the
speculation that a macroscopic shear strain does not produce an affine
deformation in the randomly close-packed droplet structure. The model
yields an anomalous contribution to the complex dynamic shear modulus that
varies as the square root of frequency. We test this prediction using a
novel light scattering technique to measure the dynamic shear modulus, and
directly observe the predicted behavior over six decades of frequency and
a wide range of volume fractions.
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Last modified January 22, 1998.