ABSTRACT

Abstract .......................................................................................................450 11.1 Introduction .......................................................................................450 11.2 Phase Transitions ...............................................................................467 11.3 Conclusion .........................................................................................483 Acknowledgments .......................................................................................483 Keywords ....................................................................................................484 References ...................................................................................................484

Symmetry analysis is a powerful tool for studying many properties of crystalline materials. Here we review the basic theory of group theory as applied to material science and we show how we can combine computational crystallography as well as density functional theory for studying the ferroelectric properties of materials.