Compressive solitary waves in black phosphorene

Abstract

Compressive solitons arise in crystals as a result of shock loading, and they can transfer energy over long distances, exhibiting weak damping. Propagation of compressive solitons in two-dimensional (2D) materials is studied much less than in 3D crystals. Here, molecular dynamics is used to analyze the dynamics of compressive solitons in single-layer phosphorene. The mechanisms of energy dissipation by the lattice are analyzed. The results obtained are compared with those obtained earlier for graphene and boron nitride. The damping of compressive solitons in phosphorene is stronger than in graphene and boron nitride, since it has a puckered structure and, therefore, more channels for energy dissipation. Overall, our results contribute to understanding the nonlinear dynamics of localized excitations in 2D materials. • Inducing features of compressive soliton wave are studied in black phosphorene. • Dynamics of compressive soliton wave propagation is discovered. • General channels of dissipation of the wave energy are detected.