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Interplay of domain structure and phase transitions: theory, experiment and functionality.
Anna Grünebohm1, Madhura Marathe1,2,3, Ruben Khachaturyan1
1Interdisciplinary Centre for Advanced Materials Simulations (ICAMS), Ruhr-University Bochum, 44801 Bochum, Germany.
Summary
This review explores domain formation and evolution in ferroelectrics, detailing unusual polar topological structures and the impact of domain walls. It highlights advanced experimental and theoretical methods for studying these phenomena.
Area of Science:
- Condensed Matter Physics
- Materials Science
Background:
- Domain walls and phase boundaries are crucial in ferroelectrics, influencing material properties.
- Previous studies often lacked understanding at relevant time and length scales.
Purpose of the Study:
- To review regularities of domain formation and evolution in ferroelectric transitions.
- To provide an overview of unusual polar topological structures.
- To survey experimental and simulation methods for studying domain interfaces.
Main Methods:
- Scale-bridging studies combining advanced experiments and theory.
- Analysis of nucleation, phase propagation, and domain coupling.
- Investigation of transient states and nanoscale phenomena.
Main Results:
- Recent advancements enable detailed study of ferroelectric domain dynamics.
- Unusual polar topological structures are identified as transient or nanoscale features.
- Joint scale-bridging studies are solving long-standing puzzles.
Conclusions:
- A deeper understanding of ferroelectric domain behavior is emerging.
- Advanced methods are crucial for characterizing complex domain structures.
- Future research trends include superlattices and nanoscale phenomena.
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