DisplacementStrom
DisplacementStrom is a term used in theoretical discussions of electromechanical coupling to describe a current-like response arising from time-varying displacement of charges within an insulating medium, without net transport of free charges.
In materials with strong coupling between mechanical and electrical degrees of freedom, rapid local shifts of
It is distinct from the classical displacement current, which originates from changing electric displacement field in
Expected in ferroelectric, piezoelectric, and flexoelectric materials under dynamic strain or electric-field modulation, and in engineered
As a concept, DisplacementStrom highlights the role of non-conduction currents in energy transduction and sensing; however,
Related concepts include displacement current, piezoelectric effect, and flexoelectric effect.