Chetverikov, A. P.; Ebeling, W.; Velarde, M. G. - In: The European Physical Journal B - Condensed Matter and … 51 (2006) 1, pp. 87-99
We investigate the onset and maintenance of nonlinear soliton-like excitations in chains of atoms with Morse interactions at rather high densities, where the exponential repulsion dominates. First we discuss the atomic interactions and approximate the Morse potential by an effective Toda...