Supersonic and multiple topological excitations in the driven frenkel-kontorova model with exponential interaction
The criteria for the existence of supersonic and multiple topological excitations (kinks) in the driven Frenkel-Kontorova model (a chain of atoms placed into an external periodic potential) with anharmonic (exponential) interatomic interactions are studied.
Braun
OM
Institute of Physics, National Ukrainian Academy of Sciences, 03650 Kiev-39, Ukraine.