Aging behavior of the localization length in a colloidal glass
arXiv:2308.14472 · doi:10.1016/j.colsurfa.2014.03.087
Abstract
The localization length r_{loc} associated with a fast secondary relaxation in glassy Laponite is determined by X-ray photon correlation spectroscopy (XPCS) through a Debye-Waller fit of the non-ergodicity parameter. Quantitative differences are observed between the time dependence (aging) of r_{loc} in spontaneously aged and rejuvenated samples. This behavior is also reflected in the calculated shear modulus which matches well with data obtained by rheological measurements.
6 pages, 5 figures