Numerical study of the momentum and doping dependence of "hot spots" and single-particle spectra in electron-doped cuprates

ORAL

Abstract

We present a systematic study of the single-particle spectral function in electron-doped cuprates determined from state-of-the-art numerical calculations using cluster perturbation theory. By comparing the appearance of the "hot spots" as a function of momentum and electron filling, we conclude that the Hubbard model with an intermediate interaction U can well capture recent experimental observations from photoemission in Nd2-xCexCuO4. This work suggests that microscopic mechanisms similar to the hole-doped cuprates may drive the short-ranged anti-ferromagnetism, and ultimately superconductivity, even on the electron doped side, and set the stage for further theoretical explorations.

*This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under Contract No. DE-AC02-76SF00515. The computational work was performed using the resources of the National Energy Research Scientific Computing Center (NERSC).

–

Presenters

  • Brian Moritz

    • Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • SLAC National Accelerator Laboratory
    • SLAC and Stanford University
    • Institute for Materials and Energy Science, Stanford
    • SSRL Materials Science Division, SLAC National Accelerator Laboratory and Stanford University

Authors

  • Brian Moritz

    • Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • SLAC National Accelerator Laboratory
    • SLAC and Stanford University
    • Institute for Materials and Energy Science, Stanford
    • SSRL Materials Science Division, SLAC National Accelerator Laboratory and Stanford University

  • Yao Wang

    • Harvard University
    • Department of Physics, Harvard University
    • Physics, Harvard University

  • Edwin Huang

    • Stanford University
    • SLAC National Accelerator Laboratory

  • Thomas Devereaux

    • Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • SLAC National Accelerator Laboratory
    • Physics, Stanford University
    • SLAC and Stanford University
    • Institute for Materials and Energy Science, Stanford
    • SIMES, SLAC National Accelerator Lab
    • SLAC National Accelerator Laboratory and Stanford University, Stanford Institute for Materials and Energy Sciences
    • SLAC, Stanford
    • SIMES, SLAC, and Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University