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Robust charge-density-wave correlations in the electron-doped single-band Hubbard model

Author

Listed:
  • Peizhi Mai

    (Oak Ridge National Laboratory
    University of Illinois at Urbana-Champaign)

  • Nathan S. Nichols

    (Argonne National Laboratory)

  • Seher Karakuzu

    (Oak Ridge National Laboratory
    Flatiron Institute)

  • Feng Bao

    (Florida State University)

  • Adrian Del Maestro

    (The University of Tennessee
    The University of Tennessee
    University of Tennessee)

  • Thomas A. Maier

    (Oak Ridge National Laboratory)

  • Steven Johnston

    (The University of Tennessee
    The University of Tennessee)

Abstract

There is growing evidence that the hole-doped single-band Hubbard and t − J models do not have a superconducting ground state reflective of the high-temperature cuprate superconductors but instead have striped spin- and charge-ordered ground states. Nevertheless, it is proposed that these models may still provide an effective low-energy model for electron-doped materials. Here we study the finite temperature spin and charge correlations in the electron-doped Hubbard model using quantum Monte Carlo dynamical cluster approximation calculations and contrast their behavior with those found on the hole-doped side of the phase diagram. We find evidence for a charge modulation with both checkerboard and unidirectional components decoupled from any spin-density modulations. These correlations are inconsistent with a weak-coupling description based on Fermi surface nesting, and their doping dependence agrees qualitatively with resonant inelastic x-ray scattering measurements. Our results provide evidence that the single-band Hubbard model describes the electron-doped cuprates.

Suggested Citation

  • Peizhi Mai & Nathan S. Nichols & Seher Karakuzu & Feng Bao & Adrian Del Maestro & Thomas A. Maier & Steven Johnston, 2023. "Robust charge-density-wave correlations in the electron-doped single-band Hubbard model," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-38566-7
    DOI: 10.1038/s41467-023-38566-7
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