A light-induced charge order mode in a metastable cuprate ladder
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866914554837991424 |
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| author | Padma, Hari Sharma, Prakash TenHuisen, Sophia F. R. Glerean, Filippo Roll, Antoine Zhou, Pan Kundu, Sarbajaya Romaguera, Arnau Skoropata, Elizabeth Ueda, Hiroki Liu, Biaolong Paris, Eugenio Wang, Yu Lee, Seng Huat Mao, Zhiqiang Dean, Mark P. M. Huang, Edwin W. Razzoli, Elia Wang, Yao Mitrano, Matteo |
| author_facet | Padma, Hari Sharma, Prakash TenHuisen, Sophia F. R. Glerean, Filippo Roll, Antoine Zhou, Pan Kundu, Sarbajaya Romaguera, Arnau Skoropata, Elizabeth Ueda, Hiroki Liu, Biaolong Paris, Eugenio Wang, Yu Lee, Seng Huat Mao, Zhiqiang Dean, Mark P. M. Huang, Edwin W. Razzoli, Elia Wang, Yao Mitrano, Matteo |
| contents | We report the observation of an emergent charge order mode in the optically-excited cuprate ladder Sr$_{14}$Cu$_{24}$O$_{41}$. Near-infrared light in the ladder plane drives a symmetry-protected electronic metastable state together with a partial melting of the equilibrium charge order. Our time-resolved resonant inelastic x-ray scattering measurements at the upper Hubbard band reveal a gapless collective excitation dispersing from the charge-order wavevector up to 0.8 eV with a slope on the order of the quasiparticle velocity. These findings reveal a regime where correlated carriers acquire itinerant character at finite momentum, and charge order becomes dynamically fluctuating, offering a platform to explore light-induced pairing instabilities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_24686 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A light-induced charge order mode in a metastable cuprate ladder Padma, Hari Sharma, Prakash TenHuisen, Sophia F. R. Glerean, Filippo Roll, Antoine Zhou, Pan Kundu, Sarbajaya Romaguera, Arnau Skoropata, Elizabeth Ueda, Hiroki Liu, Biaolong Paris, Eugenio Wang, Yu Lee, Seng Huat Mao, Zhiqiang Dean, Mark P. M. Huang, Edwin W. Razzoli, Elia Wang, Yao Mitrano, Matteo Strongly Correlated Electrons Superconductivity We report the observation of an emergent charge order mode in the optically-excited cuprate ladder Sr$_{14}$Cu$_{24}$O$_{41}$. Near-infrared light in the ladder plane drives a symmetry-protected electronic metastable state together with a partial melting of the equilibrium charge order. Our time-resolved resonant inelastic x-ray scattering measurements at the upper Hubbard band reveal a gapless collective excitation dispersing from the charge-order wavevector up to 0.8 eV with a slope on the order of the quasiparticle velocity. These findings reveal a regime where correlated carriers acquire itinerant character at finite momentum, and charge order becomes dynamically fluctuating, offering a platform to explore light-induced pairing instabilities. |
| title | A light-induced charge order mode in a metastable cuprate ladder |
| topic | Strongly Correlated Electrons Superconductivity |
| url | https://arxiv.org/abs/2510.24686 |