ECRYS - 93
J. Phys. IV France 03 (1993) C2-335-C2-342
Density wave system : slush or real glassK. BILJAKOVIC1, 2, J.C. LASJAUNIAS1 and P. MONCEAU1
1 Centre de Recherches sur les Très Basses Températures, CNRS, Laboratoire associé à l'Université Joseph Fourier, BP. 166, 38042 Grenoble cedex 9, France
2 Institute of Physics of the University of Zagreb, P.O. Box 304, 41001 Zabreb, Croatia
We show that the relaxational dynamics as exhibited in the enthalpy relaxation of the density wave compounds at very low temperatures (T<1K) is very similar to that one occuring in disordered systems such as glassy polymers or spin glasses. We discuss these similarities, as well as some pecularities, in the frame of secondary relaxational processes as genuine features of glass formers below their glass transition temperature. This approach is strongly supported by recent direct evidence for the existing glass transition brought about by means of calorimetric and dielectric measurements.
© EDP Sciences 1993