CentraleSupélec (CS) is an internationally-reputed Higher Education and Research Institution (http://www.centralesupelec.fr/en), a founding member of the University Paris-Saclay. The CS group belongs to the Smart and Functional Materials team led by C. Paillard from the Structures, Properties and Modelling of Solids (SPMS) laboratory which is also associated to CNRS. It has a longstanding and internationally recognized experience on ferroelectric and related materials such as multiferroics, antiferroelectrics, dielectrics, quantum paraelectrics, piezoelectrics, relaxors, electro/elastocalorics or photoferroelectrics and their advanced characterizations using in situ (temperature, electric-field, atmosphere) X-ray diffraction, Raman and dielectric spectroscopy and electron microscopy that will be used for the experimental side of TSAR . On the theory front, the group has also a strong modelling expertise (DFT, effective Hamiltonian, first- and second-principles calculations, Monte Carlo, Molecular Dynamic, …) which will be used in TSAR especially through modified first-principles techniques allowing to take into account the effect of thermalized photo-induced carriers.