Large linear and nonlinear electro-optic coefficients in two-dimensional ferroelectrics
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Large linear and nonlinear electro-optic coefficients in two-dimensional ferroelectrics
- 发表刊物：
- Phys. Rev. B (Lett.)
- 摘要：
- Analytical derivations and first-principles calculations are performed to investigate the electro-optic (EO) response of the two-dimensional ferroelectric SnS in its monolayer form. In addition to derive the formula for EO coefficients for two-dimensional systems, large linear and nonlinear electro-optic coefficients are discovered, along with a strongly nonlinear electro-optic response as a function of electric field. The origin of these electro optic responses is further found and involves a few specific phonon modes, in general, and the evolution of their frequencies and atomic characteristics under electric fields, in particular. Large linear and nonlinear electro-optic coefficients can be found in other two-dimensional ferroelectrics, paving the way for potential optical device applications.
- 合写作者：
- Z. J. Jiang, C. Paillard, H. O. H. Churchill, M. G. Xia, S. L. Zhang, H. J. Xiang*, L. Bellaiche*
- 卷号：
- 106
- 页面范围：
- L081404
- 是否译文：
- 否
- 发表时间：
- 2022-08-15