FERMI RESONANCE INTERFACE SOLITONS

The nonlinear dynamics of the interface between two layers of organic semiconductors is discussed for the case of the Fermi resonance, which occurs when the energy homega(c)BAR of excitation on one side of the interface is approximately equal to 2homega(b)BAR, where homega(b)BAR is the excitation energy on the other side. The Fermi resonance intera ction across the interface gives rise to nonlinear plane waves, which propagate along the interface, and also to 2D solitons which are local ized at the interface.