Ferroelectric Materials and Devices

Dear Colleagues,

Ferroelectricity was discovered about a century ago. As an electric cousin of the widely known ferromagnetics, ferroelectric materials have in no way shown fewer applications, from memory to sensors, actuators and transducers, and from military use cases to industrial and medical sectors. Because of the structural and functional flexibility and complexity, the fundamentals, microstructures, and applications of ferroelectrics have evolved rapidly. Recently, ferroelectrics have been developed in both fundamental and application-oriented studies. This Special Issue will cover topics of both aspects and will emphasize the most recent findings. In fundamental studies, first principle calculations based on density functional theory have been widely used to explore the relationship between ferroelectricity and band structures. In addition, ferromagnetic models have been adapted to ferroelectrics to forecast material property changes with external boundary conditions. In application-oriented studies, advanced ferroelectric ceramics and composites having band gap engineered compositions and porous microstructures, respectively, have been pioneered for emerging multi-sensing and energy harvesting applications. The domains, domain walls, and interfaces in ferroelectrics have been further understood for use in nanoelectronics. Some of the recent intensively researched halide perovskites for photovoltaic applications have also been proven to exhibit ferroelectric properties. Therefore, this Special Issue will collect papers broadly reflecting the above-mentioned knowledge through research in the field.

Dr. Yang Bai
Guest Editor

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• Ferroelectric
• Piezoelectric
• Pyroelectric
• Photoferroelectric
• Density functional theory
• Numerical simulation
• Multiscale modelling
• Energy harvesting
• Sensing
• Optoelectric
• Topological defect