The steady state flow of a concentrated dispersion of starlike micelles above the colloidal
glass transition concentration is interrogated by superimposing a small amplitude straining
motion orthogonal to the main flow direction. Strain amplitude sweeps reveal that the linear
response region of the orthogonal perturbation increases with increasing flow rate,
consistent with a fluidization of the materials. Orthogonal dynamic frequency sweeps
(ODFSs) are obtained for a wide range of shear rates probing the full flow curve. The shear …