| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Hume-Rothery Symposium on Thermodynamics of Microstructure Stability and Evolution
|
| Presentation Title |
Dynamical Phase-Field Simulation of the THz Light-Matter Interaction in Ferroelectrics |
| Author(s) |
Jiamian Hu, Yujie Zhu, Taorui Chen, Shihao Zhuang, Bo Wang, Aiden Ross, Xiangwei Guo, Venkatraman Gopalan, Long-Qing Chen |
| On-Site Speaker (Planned) |
Jiamian Hu |
| Abstract Scope |
The spontaneous polarization in most ferroelectric materials has a terahertz (THz)-range resonant frequency and can therefore resonantly interact with an incident THz electromagnetic (EM) wave, leading to an efficient manipulation of the polarization with a thousand times faster speed than the conventional approach of applying a voltage. In this talk, the speaker will first introduce their in-house dynamical phase-field model that uniquely incorporates the coupled dynamics of polarization, strain, and EM waves at a spatial scale down to unit-cell level, which enables an accurate simulation of the THz light-matter interaction in ferroelectrics. The speaker will then discuss the application of this new computational tool to understand and predict (i) the frequency and thickness dependent transmission and propagation across a freestanding ferroelectric slab and (ii) the THz wave nonlinearity in both bulk and strained thin-film ferroelectrics, followed by a brief outlook for the future studies in this emerging research topic. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Electronic Materials, Phase Transformations |