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REVIEW article

Front. Electron. Mater
Sec. Superconducting Materials
Volume 4 - 2024 | doi: 10.3389/femat.2024.1473324
This article is part of the Research Topic Exploring strongly correlated materials using resonant inelastic x-ray scattering View all articles

Dynamic Charge Order from Strong Correlations in the Cuprates

Provisionally accepted
Eduardo da Silva Neto Eduardo da Silva Neto 1*Alex Frano Alex Frano 2Fabio Boschini Fabio Boschini 3
  • 1 Yale University, New Haven, United States
  • 2 University of California San Diego, La Jolla, United States
  • 3 Institut National de la Recherche Scientifique, Varennes, Canada

The final, formatted version of the article will be published soon.

    Charge order has been a central focus in the study of cuprate high-temperature superconductors due to its intriguing yet not fully understood connection to superconductivity. Recent advances in resonant inelastic x-ray scattering (RIXS) in the soft x-ray regime have enabled the first momentum-resolved studies of dynamic charge order correlations in the cuprates. This progress has opened a window for a more nuanced investigation into the mechanisms behind the formation of charge order (CO) correlations. This review provides an overview of RIXS-based measurements of dynamic CO correlations in various cuprate materials. It specifically focuses on electron-doped cuprates and Bi-based hole-doped cuprates, where the CO-related RIXS signals may reveal signatures of the effective Coulomb interactions. This aims to explore a connection between two central phenomena in the cuprates: strong Coulomb correlations and CO-forming tendencies. Finally, we discuss current open questions and potential directions for future RIXS studies as the technique continues to improve and mature, along with other probes of dynamic correlations that would provide a more comprehensive picture.

    Keywords: Superconductivity, charge order, Charge density wave, Cuprates, Strong electron correlations

    Received: 30 Jul 2024; Accepted: 17 Oct 2024.

    Copyright: © 2024 da Silva Neto, Frano and Boschini. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Eduardo da Silva Neto, Yale University, New Haven, United States

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.