Defining “giant” electrostriction

The recent discovery of giant electrostrictors has re-ignited the interest in electrostriction, an electromechanical coupling existing all dielectrics but overshadowed by its linear counterpart: piezoelectricity. In this review, after a reminder classical we propose definition electrostriction based on two empirical relations (Newnam relation and one propose). From definition, review previous reports electrostrictors, to assess their nature. Focusing ones satisfying our compare performances characteristics. We also identify some hurdles adoption wide range applications, despite fundamental applicative interests.