Persistent short-range charge correlations revealed by ultrafast melting of electronic order in YBa$_2$Cu$_3$O$_{6+x}$
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2026
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| author | Seo, C. Shen, L. Petsch, A. N. Wandel, S. Esposito, V. Koralek, J. D. Dakovski, G. L. Lin, M-F. Moeller, S. P. Schlotter, W. F. Reid, A. H. Minitti, M. P. Liang, R. Bonn, D. Hardy, W. Damascelli, A. Giannetti, C. Neto, E. H. da Silva Turner, J. J. Boschini, F. Coslovich, G. |
| author_facet | Seo, C. Shen, L. Petsch, A. N. Wandel, S. Esposito, V. Koralek, J. D. Dakovski, G. L. Lin, M-F. Moeller, S. P. Schlotter, W. F. Reid, A. H. Minitti, M. P. Liang, R. Bonn, D. Hardy, W. Damascelli, A. Giannetti, C. Neto, E. H. da Silva Turner, J. J. Boschini, F. Coslovich, G. |
| contents | Charge density waves (CDW) are ubiquitous in the complex phase diagram of cuprate superconductors and exhibit both short- and long-range correlations. Using time-resolved resonant X-ray scattering, we investigate the photo-induced dynamics of CDW in YBa$_2$Cu$_3$O$_{6.67}$. We discover an excitation threshold ($Φ$$_\mathrm{C}$ $\approx$ 65 $μ$J/cm$^2$) above which long-range CDW disappear, revealing a persistent CDW peak with short-range correlation length. Ultrafast photo-excitation promptly uncovers this residual short-range CDW correlations, appearing within $\approx$ 0.2 ps. Long-range CDW coherence recovers within $\approx$ 0.6 ps, while the peak intensity remains partially suppressed. We rationalize the dichotomic behavior in the fluence and temporal dependencies as the signature of two coexisting CDW peaks, arising from short- and long-range correlations, which we disentangle through their distinct response to photo-excitation. We provide evidence that the collapse of long-range correlations is driven by an electronic process, while short-range correlations are characterized by distinct timescales and stiffness against photo-excitation. This approach establishes ultrafast X-ray scattering as an effective tool for disentangling coexisting density waves and correlations in quantum materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_10486 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Persistent short-range charge correlations revealed by ultrafast melting of electronic order in YBa$_2$Cu$_3$O$_{6+x}$ Seo, C. Shen, L. Petsch, A. N. Wandel, S. Esposito, V. Koralek, J. D. Dakovski, G. L. Lin, M-F. Moeller, S. P. Schlotter, W. F. Reid, A. H. Minitti, M. P. Liang, R. Bonn, D. Hardy, W. Damascelli, A. Giannetti, C. Neto, E. H. da Silva Turner, J. J. Boschini, F. Coslovich, G. Superconductivity Strongly Correlated Electrons Charge density waves (CDW) are ubiquitous in the complex phase diagram of cuprate superconductors and exhibit both short- and long-range correlations. Using time-resolved resonant X-ray scattering, we investigate the photo-induced dynamics of CDW in YBa$_2$Cu$_3$O$_{6.67}$. We discover an excitation threshold ($Φ$$_\mathrm{C}$ $\approx$ 65 $μ$J/cm$^2$) above which long-range CDW disappear, revealing a persistent CDW peak with short-range correlation length. Ultrafast photo-excitation promptly uncovers this residual short-range CDW correlations, appearing within $\approx$ 0.2 ps. Long-range CDW coherence recovers within $\approx$ 0.6 ps, while the peak intensity remains partially suppressed. We rationalize the dichotomic behavior in the fluence and temporal dependencies as the signature of two coexisting CDW peaks, arising from short- and long-range correlations, which we disentangle through their distinct response to photo-excitation. We provide evidence that the collapse of long-range correlations is driven by an electronic process, while short-range correlations are characterized by distinct timescales and stiffness against photo-excitation. This approach establishes ultrafast X-ray scattering as an effective tool for disentangling coexisting density waves and correlations in quantum materials. |
| title | Persistent short-range charge correlations revealed by ultrafast melting of electronic order in YBa$_2$Cu$_3$O$_{6+x}$ |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2603.10486 |