Strongly Correlated Charge Density Wave in La2−xSrxCuO4 Evidenced by Doping-Dependent Phonon Anomaly
| العنوان: | Strongly Correlated Charge Density Wave in La2−xSrxCuO4 Evidenced by Doping-Dependent Phonon Anomaly |
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| المؤلفون: | D. G. Mazzone, Naoki Momono, A. C. Walters, Migaku Oda, K. Kurosawa, M. Garcia-Fernandez, Ignace Jarrige, Abhishek Nag, Xiaopei Liu, Andi Barbour, Jonathan Pelliciari, Hu Miao, Ke-Jin Zhou, Jiaqi Lin, Mark Dean, Valentina Bisogni, G. D. Gu |
| المصدر: | Physical Review Letters. 124 |
| بيانات النشر: | American Physical Society (APS), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Physics, Condensed matter physics, Magnetism, Scattering, Phonon, Doping, General Physics and Astronomy, Fermi surface, 01 natural sciences, Spectral line, Condensed Matter::Superconductivity, 0103 physical sciences, Condensed Matter::Strongly Correlated Electrons, Cuprate, 010306 general physics, Charge density wave |
| الوصف: | The discovery of charge-density-wave-related effects in the resonant inelastic x-ray scattering spectra of cuprates holds the tantalizing promise of clarifying the interactions that stabilize the electronic order. Here, we report a comprehensive resonant inelastic x-ray scattering study of La_{2-x}Sr_{x}CuO_{4} finding that charge-density wave effects persist up to a remarkably high doping level of x=0.21 before disappearing at x=0.25. The inelastic excitation spectra remain essentially unchanged with doping despite crossing a topological transition in the Fermi surface. This indicates that the spectra contain little or no direct coupling to electronic excitations near the Fermi surface, rather they are dominated by the resonant cross section for phonons and charge-density-wave-induced phonon softening. We interpret our results in terms of a charge-density wave that is generated by strong correlations and a phonon response that is driven by the charge-density-wave-induced modification of the lattice. |
| تدمد: | 1079-7114 0031-9007 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::8c3ae94034b417d279a5b770f47a7d73Test https://doi.org/10.1103/physrevlett.124.207005Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi...........8c3ae94034b417d279a5b770f47a7d73 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10797114 00319007 |
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