Universal Waterfall Feature in Cuprate Superconductors: Evidence of a Momentum-Driven Crossover

Benjamin Bacq-Labreuil; Chafic Fawaz; Yuichi Okazaki; Yukiko Obata; Hervé Cercellier; Patrick Le Fèvre; François Bertran; David Santos-Cottin; Hajime Yamamoto; Ikuya Yamada; Masaki Azuma; Koji Horiba; Hiroshi Kumigashira; Matteo D'Astuto; Silke Biermann; Benjamin Lenz

doi:10.1103/PhysRevLett.134.016502

Universal Waterfall Feature in Cuprate Superconductors: Evidence of a Momentum-Driven Crossover

Benjamin Bacq-Labreuil
, Chafic Fawaz
, Yuichi Okazaki
, Yukiko Obata
, Hervé Cercellier
, Patrick Le Fèvre
, François Bertran
, David Santos-Cottin
, Hajime Yamamoto
, Ikuya Yamada
, Masaki Azuma
, Koji Horiba
, Hiroshi Kumigashira
, Matteo D'Astuto
, Silke Biermann
, Benjamin Lenz

Research output: Contribution to journal › Article › peer-review

Abstract

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 NaxCa2-xCuO2Cl2 (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.

Original language	English
Article number	016502
Journal	Physical Review Letters
Volume	134
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.134.016502
Publication status	Published - 10 Jan 2025

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Bacq-Labreuil, B., Fawaz, C., Okazaki, Y., Obata, Y., Cercellier, H., Le Fèvre, P., Bertran, F., Santos-Cottin, D., Yamamoto, H., Yamada, I., Azuma, M., Horiba, K., Kumigashira, H., D'Astuto, M., Biermann, S., & Lenz, B. (2025). Universal Waterfall Feature in Cuprate Superconductors: Evidence of a Momentum-Driven Crossover. Physical Review Letters, 134(1), Article 016502. https://doi.org/10.1103/PhysRevLett.134.016502

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title = "Universal Waterfall Feature in Cuprate Superconductors: Evidence of a Momentum-Driven Crossover",

abstract = "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 NaxCa2-xCuO2Cl2 (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.",

author = "Benjamin Bacq-Labreuil and Chafic Fawaz and Yuichi Okazaki and Yukiko Obata and Herv{\'e} Cercellier and \{Le F{\`e}vre\}, Patrick and Fran{\c c}ois Bertran and David Santos-Cottin and Hajime Yamamoto and Ikuya Yamada and Masaki Azuma and Koji Horiba and Hiroshi Kumigashira and Matteo D'Astuto and Silke Biermann and Benjamin Lenz",

note = "Publisher Copyright: {\textcopyright} 2025 American Physical Society. ",

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doi = "10.1103/PhysRevLett.134.016502",

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Bacq-Labreuil, B, Fawaz, C, Okazaki, Y, Obata, Y, Cercellier, H, Le Fèvre, P, Bertran, F, Santos-Cottin, D, Yamamoto, H, Yamada, I, Azuma, M, Horiba, K, Kumigashira, H, D'Astuto, M, Biermann, S & Lenz, B 2025, 'Universal Waterfall Feature in Cuprate Superconductors: Evidence of a Momentum-Driven Crossover', Physical Review Letters, vol. 134, no. 1, 016502. https://doi.org/10.1103/PhysRevLett.134.016502

TY - JOUR

T1 - Universal Waterfall Feature in Cuprate Superconductors

T2 - Evidence of a Momentum-Driven Crossover

AU - Bacq-Labreuil, Benjamin

AU - Fawaz, Chafic

AU - Okazaki, Yuichi

AU - Obata, Yukiko

AU - Cercellier, Hervé

AU - Le Fèvre, Patrick

AU - Bertran, François

AU - Santos-Cottin, David

AU - Yamamoto, Hajime

AU - Yamada, Ikuya

AU - Azuma, Masaki

AU - Horiba, Koji

AU - Kumigashira, Hiroshi

AU - D'Astuto, Matteo

AU - Biermann, Silke

AU - Lenz, Benjamin

PY - 2025/1/10

Y1 - 2025/1/10

N2 - 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 NaxCa2-xCuO2Cl2 (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.

AB - 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 NaxCa2-xCuO2Cl2 (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.

U2 - 10.1103/PhysRevLett.134.016502

DO - 10.1103/PhysRevLett.134.016502

M3 - Article

AN - SCOPUS:85214676042

SN - 0031-9007

VL - 134

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

M1 - 016502

ER -

Universal Waterfall Feature in Cuprate Superconductors: Evidence of a Momentum-Driven Crossover

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