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.

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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