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Updated: Feb 16, 2026
10:40
A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
Published on: April 8, 2018
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Photostriction and elasto-optic response in multiferroics and ferroelectrics from first principles.
Yurong Yang1, Charles Paillard1, Bin Xu1
1Department of Physics and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, AR 72701, United States of America.
Summary
This review highlights how light and strain influence ferroelectric materials. First-principles studies reveal key mechanisms like photostriction and elasto-optic effects, crucial for designing opto-mechanical devices.
Area of Science:
- Condensed Matter Physics
- Materials Science
Background:
- Ferroelectric and multiferroic materials exhibit complex responses to external stimuli.
- Understanding light-matter and strain-matter interactions is key for novel device applications.
Purpose of the Study:
- To review first-principles studies on light and strain interactions in ferroelectric materials.
- To present modeling schemes for photostriction and elasto-optic effects.
- To analyze ab initio calculation results for microscopic insights.
Main Methods:
- First-principles calculations
- Ab initio modeling of photostriction
- Elasto-optic effect simulations
Main Results:
- The piezoelectric effect significantly influences photostriction in ferroelectric materials.
- Low-symmetry phases in strained lead titanate thin films yield large elasto-optic constants.
- Deformation potential effects are nearly as significant as piezoelectric effects in photostriction.
Conclusions:
- First-principles calculations provide crucial microscopic understanding of photostriction and elasto-optic effects.
- These insights can drive the development of advanced opto-mechanical devices.
- The interplay of light, strain, and material properties is fundamental for next-generation technologies.
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