Universal Waterfall Feature in Cuprate Superconductors: Evidence of a Momentum-Driven Crossover
We study two related universal anomalies of the spectral function of cuprates, so-called waterfall and high-energy kink features, by a combined cellular dynamical mean-field theory and angle-resolved photoemission study for the oxychloride Na_{x}Ca_{2-x}CuO_{2}Cl_{2} (Na-CCOC). Tracing their origin back to an interplay of spin-polaron and local-correlation effects both in undoped and hole-doped (Na-)CCOC, we establish them as a universal crossover between regions differing in the momentum dependence of the coupling and not necessarily in the related quasiparticles' energies. The proposed scenario extends to doping levels coinciding with the cuprate's superconducting dome and motivates further investigations of the fate of spin polarons in the superconducting phase.
Authors
- Benjamin Lenz (ORCID: https://orcid.org/0000-0002-6720-8960)
- Hiroshi Kumigashira (ORCID: https://orcid.org/0000-0003-4668-2695)
- David Santos‐Cottin (ORCID: https://orcid.org/0000-0002-4014-0708)
- H. Cercellier
- F. Bertran (ORCID: https://orcid.org/0000-0002-2416-0514)
- Yuichi Okazaki (ORCID: https://orcid.org/0000-0002-7545-0829)
- Koji Horiba (ORCID: https://orcid.org/0000-0002-1124-0451)
- Hajime Yamamoto (ORCID: https://orcid.org/0000-0001-6327-6803)
- Ikuya Yamada
- Yukiko Obata (ORCID: https://orcid.org/0000-0002-9949-2273)
- Silke Biermann
- Benjamin Bacq-Labreuil (ORCID: https://orcid.org/0000-0002-3024-9312)
- M. d’Astuto (ORCID: https://orcid.org/0000-0002-7583-4427)
- Masaki Azuma (ORCID: https://orcid.org/0000-0002-8378-321X)
- Patrick Le Fèvre (ORCID: https://orcid.org/0000-0001-9800-8059)
- Chafic Fawaz (ORCID: https://orcid.org/0009-0002-2839-0031)
Institutions
- Tokyo Institute of Technology (JP)
- Université de Sherbrooke (CA)
- High Energy Accelerator Research Organization (JP)
- University of Fribourg (CH)
- Lund University (SE)
- Collège de France (FR)
- Tohoku University (JP)
- Synchrotron soleil (FR)
- Shanghai Institute for Science of Science (CN)
- Institute for Magnetospheric Physics (US)
- Centre de Physique Théorique (FR)
- European Theoretical Spectroscopy Facility (BE)
- Institut Polytechnique de Paris (FR)
- Institut de minéralogie, de physique des matériaux et de cosmochimie (FR)
- Osaka Metropolitan University (JP)
- Institut des langues et cultures d'Europe, Amérique, Afrique, Asie et Australie (FR)
- Institute of Science Tokyo (JP)
- Tokyo Metropolitan University (JP)
- Université Grenoble Alpes (FR)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-01-09
- DOI
- https://doi.org/10.1103/physrevlett.134.016502
- Citations
- 4
- Primary Topic
- Physics of Superconductivity and Magnetism
- Type
- article
- Field-Weighted Citation Impact
- 5.03
Funders
- Université de Sherbrooke
- Kanazawa University
- Institut Polytechnique de Paris
- Centre National de la Recherche Scientifique
- Grand Équipement National De Calcul Intensif
- Institut Néel