  The relaxational dynamics in glass-forming glycerol and glycerol mixed with
LiCl is in-vestigated using different neutron scattering techniques. The
performed neutron spin-echo experiments, which extend up to relatively long
relaxation-time scales of the order of 10 ns, should allow for the detection of
contributions from the so-called excess wing. This phenomenon, whose
microscopic origin is controversially discussed, arises in a variety of glass
formers and, until now, was almost exclusively investigated by dielectric
spectros-copy and light scattering. Here we show that the relaxational process
causing the excess wing also can be detected by neutron scattering, which
directly couples to density fluctua-tions.
