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Updated: Jan 15, 2026
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Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
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Domain-Wall-Mediated Interfacial Ferroelectric Switching
Hao-Wen Xu1, Wen-Cheng Fan1, Jun-Ding Zheng1
1Key Laboratory of Polar Materials and Devices (MOE), School of Physics and Electronic Science, and Shanghai Center of Brain-inspired Intelligent Materials and Devices, East China Normal University, Shanghai 200241, China.
Nano Letters
|January 14, 2026
Summary
Interfacial ferroelectricity uses domain walls (DWs) for memory devices. Different DW types impact polarization stability and switching reversibility, guiding future nanoelectronics.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Nanotechnology
Background:
- Interfacial ferroelectricity is crucial for developing ultrafast, low-power memory devices.
- Understanding domain wall (DW) behavior is key to polarization switching, but various DW types and their effects on stability are not fully understood.
Purpose of the Study:
- To elucidate the microscopic switching mechanisms in hexagonal interfacial ferroelectrics.
- To investigate the role of different domain wall types in polarization stability and switching reversibility.
- To propose strategies for achieving nonvolatile ferroelectric switching.
Main Methods:
- First-principles calculations
- Machine-learning methods
- Experimental validations
Main Results:
- Domain walls (DWs) connect opposite polarization states and respond to electric fields via polarization vector deviation, causing interlayer sliding and DW migration.
- Different DW types exhibit distinct switching behaviors, influencing the reversibility of polarization switching.
- Strategies for nonvolatile ferroelectric switching were proposed and experimentally validated.
Conclusions:
- The study reveals the microscopic switching mechanism in hexagonal interfacial ferroelectrics, highlighting the critical role of DWs.
- Insights into DW behavior provide guidance for designing advanced nanoelectronics and memory devices.
- Understanding DW dynamics is essential for optimizing ferroelectric performance and achieving nonvolatile switching.
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