Tunable Spatiotemporal Orders in Driven Insulators
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866916607267176448 |
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| author | Kaplan, Daniel Volkov, Pavel A. Chakraborty, Ahana Zhuang, Zekun Chandra, Premala |
| author_facet | Kaplan, Daniel Volkov, Pavel A. Chakraborty, Ahana Zhuang, Zekun Chandra, Premala |
| contents | We show that driving optical phonons above a threshold fluence induces spatiotemporal orders, where material properties oscillate at an incommensurate wavevector $q_0$ in space and at half the drive frequency in time. The order is robust against temperature on timescales much larger than the lifetime of the excited modes and can be accompanied by a static $2q_0$ modulation. We make predictions for time-resolved diffraction and provide estimates for candidate materials. Our results show the possibility of using THz waves in solids to realize tunable incommensurate order on the nanoscale. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_12214 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Tunable Spatiotemporal Orders in Driven Insulators Kaplan, Daniel Volkov, Pavel A. Chakraborty, Ahana Zhuang, Zekun Chandra, Premala Mesoscale and Nanoscale Physics Materials Science Statistical Mechanics We show that driving optical phonons above a threshold fluence induces spatiotemporal orders, where material properties oscillate at an incommensurate wavevector $q_0$ in space and at half the drive frequency in time. The order is robust against temperature on timescales much larger than the lifetime of the excited modes and can be accompanied by a static $2q_0$ modulation. We make predictions for time-resolved diffraction and provide estimates for candidate materials. Our results show the possibility of using THz waves in solids to realize tunable incommensurate order on the nanoscale. |
| title | Tunable Spatiotemporal Orders in Driven Insulators |
| topic | Mesoscale and Nanoscale Physics Materials Science Statistical Mechanics |
| url | https://arxiv.org/abs/2405.12214 |