Evidence of Floquet electronic steady states in graphene under continuous-wave mid-infrared irradiation
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arXiv
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866929549437042688 |
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| author | Liu, Yijing Yang, Christopher Gaertner, Gabriel Huckabee, John Suslov, Alexey V. Refael, Gil Nathan, Frederik Lewandowski, Cyprian Torres, Luis E. F. Foa Esin, Iliya Barbara, Paola Kalugin, Nikolai G. |
| author_facet | Liu, Yijing Yang, Christopher Gaertner, Gabriel Huckabee, John Suslov, Alexey V. Refael, Gil Nathan, Frederik Lewandowski, Cyprian Torres, Luis E. F. Foa Esin, Iliya Barbara, Paola Kalugin, Nikolai G. |
| contents | Light-induced phenomena in materials can exhibit exotic behavior that extends beyond equilibrium properties, offering new avenues for understanding and controlling electronic phases. So far, non-equilibrium phenomena in solids have been predominantly explored using femtosecond laser pulses, which generate transient, ultra-fast dynamics. Here, we investigate the steady non-equilibrium regime in graphene induced by a continuous-wave (CW) mid-infrared laser. Our transport measurements reveal signatures of a long-lived Floquet phase, where a non-equilibrium electronic population is stabilized by the interplay between coherent photoexcitation and incoherent phonon cooling. The observation of non-equilibrium steady states using CW lasers opens a new regime for low-temperature Floquet phenomena, paving the way toward Floquet engineering of steady-state phases of matter. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_13930 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Evidence of Floquet electronic steady states in graphene under continuous-wave mid-infrared irradiation Liu, Yijing Yang, Christopher Gaertner, Gabriel Huckabee, John Suslov, Alexey V. Refael, Gil Nathan, Frederik Lewandowski, Cyprian Torres, Luis E. F. Foa Esin, Iliya Barbara, Paola Kalugin, Nikolai G. Mesoscale and Nanoscale Physics Materials Science Light-induced phenomena in materials can exhibit exotic behavior that extends beyond equilibrium properties, offering new avenues for understanding and controlling electronic phases. So far, non-equilibrium phenomena in solids have been predominantly explored using femtosecond laser pulses, which generate transient, ultra-fast dynamics. Here, we investigate the steady non-equilibrium regime in graphene induced by a continuous-wave (CW) mid-infrared laser. Our transport measurements reveal signatures of a long-lived Floquet phase, where a non-equilibrium electronic population is stabilized by the interplay between coherent photoexcitation and incoherent phonon cooling. The observation of non-equilibrium steady states using CW lasers opens a new regime for low-temperature Floquet phenomena, paving the way toward Floquet engineering of steady-state phases of matter. |
| title | Evidence of Floquet electronic steady states in graphene under continuous-wave mid-infrared irradiation |
| topic | Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2410.13930 |