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

Peizhi Mai; Nathan S. Nichols; Seher Karakuzu; Feng Bao; Adrian Del Maestro; Thomas A. Maier; Steven Johnston

doi:10.1038/s41467-023-38566-7

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

Peizhi Mai, Nathan S. Nichols, Seher Karakuzu, Feng Bao, Adrian Del Maestro, Thomas A. Maier, Steven Johnston

Computational Sciences & Engineering Div

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

4 Scopus citations

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.

Original language	English
Article number	2889
Journal	Nature Communications
Volume	14
Issue number	1
DOIs	https://doi.org/10.1038/s41467-023-38566-7
State	Published - Dec 2023

Funding

We thank M. P. M. Dean and J. Pelliciari for their valuable discussions. This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Award Number DE-SC0022311. F.B. was supported by the Department of Energy, Office of Science, Advanced Scientific Computing Research (ASCR) progam, under Award Number DE-SC0022297. N.S.N. was supported by the Argonne Leadership Computing Facility, which is a U.S. Department of Energy Office of Science User Facility operated under contract DE-AC02-06CH11357. This research used resources from the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract No. DE-AC05-00OR22725.

Funders	Funder number
U.S. Department of Energy
Office of Science	DE-AC05-00OR22725, DE-AC02-06CH11357
Basic Energy Sciences	DE-SC0022311
Advanced Scientific Computing Research	DE-SC0022297

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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.",

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AU - Karakuzu, Seher

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AU - Del Maestro, Adrian

AU - Maier, Thomas A.

AU - Johnston, Steven

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

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