Nonlinear optical response in kagome lattice with inversion symmetry breaking
Fuente:
arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866918018734358528 |
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| author | Liu, Xiangyang Lai, Junwen Zhan, Jie Yu, Tianye Liu, Peitao Yunoki, Seiji Chen, Xing-Qiu Sun, Yan |
| author_facet | Liu, Xiangyang Lai, Junwen Zhan, Jie Yu, Tianye Liu, Peitao Yunoki, Seiji Chen, Xing-Qiu Sun, Yan |
| contents | The kagome lattice is a fundamental model structure in condensed matter physics and materials science featuring symmetry-protected flat bands, saddle points, and Dirac points. This structure has emerged as an ideal platform for exploring various quantum physics. By combining effective model analysis and first-principles calculations, we propose that the synergy among inversion symmetry breaking, flat bands, and saddle point-related van Hove singularities within the kagome lattice holds significant potential for generating strong second-order nonlinear optical response. This property provides an inspiring insight into the practical application of the kagome-like materials, which is helpful for a comprehensive understanding of kagome lattice-related physics. Moreover, this work offers an alternative approach for designing materials with strong a second-order nonlinear optical response. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_08289 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nonlinear optical response in kagome lattice with inversion symmetry breaking Liu, Xiangyang Lai, Junwen Zhan, Jie Yu, Tianye Liu, Peitao Yunoki, Seiji Chen, Xing-Qiu Sun, Yan Optics Materials Science Numerical Analysis The kagome lattice is a fundamental model structure in condensed matter physics and materials science featuring symmetry-protected flat bands, saddle points, and Dirac points. This structure has emerged as an ideal platform for exploring various quantum physics. By combining effective model analysis and first-principles calculations, we propose that the synergy among inversion symmetry breaking, flat bands, and saddle point-related van Hove singularities within the kagome lattice holds significant potential for generating strong second-order nonlinear optical response. This property provides an inspiring insight into the practical application of the kagome-like materials, which is helpful for a comprehensive understanding of kagome lattice-related physics. Moreover, this work offers an alternative approach for designing materials with strong a second-order nonlinear optical response. |
| title | Nonlinear optical response in kagome lattice with inversion symmetry breaking |
| topic | Optics Materials Science Numerical Analysis |
| url | https://arxiv.org/abs/2505.08289 |