Emergence of heterophase structures near phase transitions in photoferroelectric materials

The present study shows that under intense illumination, various spatially nonuniform states may emerge near structural phase transitions in systems with semiconducting properties. Different traveling and stationary autosoliton states are studied, and so is a periodic heterophase structure with alternating para-and ferroelectric phases, which results from a redistribution of electrons on trapping levels. The problem is solved for the one-dimensional case. The emergent behavior is related to the dynamics of the ferroelectric semiconductor as a whole and is an example of synergistic behavior. Zh. éksp. Teor. Fiz. 111, 1465–1476 (April 1997)