Showing papers by "University of Crete published in 1980"

TL;DR: In this paper, the role of long-range Coulomb forces in the phonon spectrum of a system of two ionic, interpenetrating sublattices has been examined.

TL;DR: In this paper, it was shown that in the weak coupling limit, the soliton lattice of a coupled linear chain system is stable at low temperatures and all the harmonics of the lattice exhibit the three-dimensional crossover at the same temperature which is also equal to the crossover temperature of the average discommensuration shift.