R. Torre et al., Time-resolved optical Kerr effect on a fragile glass-forming liquid: Test of different mode coupling theory aspects, EUROPH LETT, 52(3), 2000, pp. 324-329
The dynamics of the fragile glass-forming liquid m-toluidine is investigate
d by time-resolved optical Kerr effect. A heterodyne detection technique al
lows to analyze the signal over four decades in time (10(-13) s to 10(-9) s
), in the temperature range 250 K-295 K. The results of data analysis remar
kably agree with the predictions of the idealised mode coupling theory (MCT
). Some parameters related to that theory are here determined for the first
time; also the material-dependent parameters lambda = 0.77 +/- 0.02 and T-
c = 220 +/- 5 K can be independently and consistently determined from three
different dynamical regimes.