TY - JOUR
AU1 - Leonardo, R Di
AU2 - Taschin, A
AU3 - Torre, R
AU4 - Sampoli, M
AU5 - Ruocco, G
AB - We studied the relaxation processes of glycerol by a transient grating experimentwith polarization selectivity and optical heterodyne detection. The densityresponse of supercooled glycerol, for a wavevector q  0.63m1,has been studied in that temperature range (T  200 340K),where the rearrangement of the structure (-relaxation)and thermal diffusion occur on the same timescale. A strong interactionbetween the two modes is observed, manifesting in a dip in theT dependenceof the apparent thermal conductivity and in a flattening of the apparent -relaxationtime upon cooling. A parameter-free thermo-hydrodynamic model for thelong-time response is developed. The model is capable of quantitativelyreproducing the data and of explaining the observed phenomenology.
TI - Structural and entropic modes in supercooled liquids: experimental and theoretical investigation
JF - Journal of Physics: Condensed Matter
DO - 10.1088/0953-8984/15/11/337
DA - 2003-03-10
UR - https://www.deepdyve.com/lp/iop-publishing/structural-and-entropic-modes-in-supercooled-liquids-experimental-and-R0ZuvUGfl1
SP - S1181
EP - S1192
VL - 15
IS - 11
DP - DeepDyve
ER -