Doping dependence of ordered phases in the Hubbard-Holstein model

ORAL

Abstract

Complex phase diagrams of strongly correlated materials are often accessed by the addition or removal of carriers, for example the emergence of high-temperature superconductivity from a charge transfer insulating state in the cuprates, and the metal-insulator transition in the nickelates. In many cases, these doping-dependent transitions are closely linked to the competition between multiple phases of similar energy scales, e.g., charge-stripe and superconducting states in the cuprates. The Hubbard-Holstein model, which includes electron-electron and electron-phonon interactions, provides a framework to study competing phases. In this talk I will present determinant quantum Monte Carlo (DQMC) simulations of the Hubbard-Holstein model and use spin and charge susceptibilities and single-particle spectral functions to elucidate the doping evolution of the competition between spin and charge order.

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Authors

  • Christian Mendl

    • SLAC National Accelerator Laboratory and Stanford University

  • Elizabeth Nowadnick

    • Cornell University

  • Yvonne Kung

    • SLAC National Accelerator Laboratory and Stanford University

  • Brian Moritz

    • SLAC National Accelerator Laboratory and Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC & Stanford University

  • Steven Johnston

    • University of Tennessee
    • Department of Physics and Astronomy, University of Tennessee, Knoxville, USA
    • Department of Physics and Astronomy, The University of Tennessee, Knoxville
    • Univ of Tennessee, Knoxville

  • Thomas Devereaux

    • SLAC National Accelerator Laboratory and Stanford University