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FOR 520:  Functional Ferroic Devices: Physical Bases and Concepts

Subject Area Physics
Computer Science, Systems and Electrical Engineering
Term from 2003 to 2009
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 5470500
 
The Research Unit aims at fundamentally explore, model, and integrate functional ferroic systems into novel concepts and potential applications. Of interest are ferroic properties in the field of ferroelectrics, ferromagnets, and coupled ferroelectric-ferromagnetic functionality. Ferroic materials are systems that show changes in symmetry upon temperature or stress. This holds for both ferroelectrics and ferromagnetics. Within the last years, ferroics substantially gained in interest due to both their extraordinary material properties and the possibilities to assemble and synthesise those systems with high chemical stoechiometry and physical reproducibility. Hence, thin film applications in microelectronic devices such as switches, memories, wave guide structures, actors and sensors, but equally volume crystal integration, for instance, in optics and optoelectronics are intensively followed these days. Due to the large variability in material and electronic properties of ferroics, many more applications are feasible that have to be explored. Functional devices made up from ferroelectric/ferromagnetic sandwiches, for instance, are structures that are easily producible with today's technologies but have to been realised yet. To gain the fundamental physical understanding and deducing feasible concepts form that knowledge, we head towards the concerted investigation in both the experimental and theoretical way. We thus combine the knowledge assembled within this Research Unit from different fields, for instance, the natural sciences as well as the engineering sciences. It is with this combination that we will be able to approach this complex thematic in a concerted and fundamental way.
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