Slow dynamics and aging of a colloidal hard sphere glass.
The intermediate scattering function (ISF) is measured for a colloidal hard-sphere glass as functions of the scattering vector and waiting time. For scattering vectors near the structure factor peak, we show that the ISF and the stretching index, defined at the crossover time between the fast and slow processes, depend algebraically on the waiting time. By contrast, the Debye-Waller factor is independent of the waiting time.
Department of Applied Physics, Royal Melbourne Institute of Technology, Melbourne, VIC 3000, Australia.
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Martinez
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Bryant
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van Megen