Ferroelectric Phase Transitions in Nanocrystalline ABO3 System at High Pressure.

Composition- and pressure-induced ferroelectric to antiferroelectric phase transitions in Sm-doped BiFeO3 system

Advances in Thermodynamics of Ferroelectric Phase Transitions

The thermodynamics of ferroelectric phase transitions is an important constituent part of the phenomenological theories of them, as well as the interface dynamics of them. In particular, if we confine the thermodynamics to the equilibrium range, we can say that the LandauDevonshire theory is a milestone in the process of the development of ferroelectric phase transition theories. This can be fo...

Phase transitions in ferroelectric-paraelectric superlattices

Related Articles Modeling the switching kinetics in ferroelectrics J. Appl. Phys. 110, 114106 (2011) Ferroelectric phase transition and low-temperature dielectric relaxations in Sr4(La1xSmx)2Ti4Nb6O30 ceramics J. Appl. Phys. 110, 114101 (2011) Poling temperature tuned electric-field-induced ferroelectric to antiferroelectric phase transition in 0.89Bi0.5Na0.5TiO3-0.06BaTiO3-0.05K0.5Na0.5NbO3 ce...

Phenomenological theories of ferroelectric phase transitions

parameter in the free energy expansion, phenomenological theory can also describe inhomogeneous structures appearPhenomenological theories for ferroelectrics are based ing in the ferroelectric phase transition, such as twins, on L andau–Devonshire type models, which can be conantiphase structures and domain walls. Here two examples structed based on thermodynamic principles and symwill be used ...

Dynamics of KH2PO4 type ferroelectric phase transitions

2014 We include the configuration energy in Kobayashi’s theory for KDP-type ferroelectric crystals. The theory is then shown to be coherent from the thermodynamical point of view, as the order parameter and the frequency of the associated soft mode vanish at the same temperature. The results show that it is possible to have another kind of mixed ferroelectric, where the displacive phenomenon tr...