The glass transition and propagating transverse phonons in colloidal systems

摘要

The dynamics of mono-disperse, highly charged colloidal systems are investigated in the glassy phase. The Debye-Waller factors obtained are compared to calculations based on the mode-coupling theory. For small Q values, low-frequency oscillations appear in the time correlation functions. An interpretation of these oscillations is given in terms of long-wavelength transverse phonons, which are characteristic of the glassy state.