C60 films were fabricated by vacuum sublimation and studied with dielectric spectroscopy regarding glass transition. With annealing, the dielectric loss peaks decreased in height, and the apparent activation energy deduced from their frequency dependence dropped in magnitude. The peaks, broad...

By a wet chemical method we have prepared nano-LiNbO3 with different crystallite sizes. Their 7Li NMR spectra each show, on top of a broad band accompanied by two satellites, a sharp central peak whose strength decreases with growing grain size. On the other hand, for a given sample and as...