APS Logo

Electronic Structure of Doped 1D Cuprate Chains

ORAL

Abstract

1D cuprate chain compounds provide a unique opportunity to reveal the Hamiltonian of cuprates due to the availability of reliable theoretical solutions. However, progress has been hindered by the inability of controlled doping in these materials. We synthesize the 1D cuprate Ba2-xSrxCuO3+δ over a wide range of hole doping. Our angle-resolved photoemission spectroscopy experiments disclose the doping evolution of both the holon and spinon excitations. A prominent folding branch with an intensity far exceeding the prediction of the simple Hubbard model is identified. A quantitative theory-experiment comparison provides concrete evidence for a key missing ingredient in cuprates: a strong near-neighbor attraction.

–

Presenters

  • Zhuoyu Chen

    Stanford Univ

Authors

  • Zhuoyu Chen

    Stanford Univ

  • Yao Wang

    Clemson University

  • Slavko N Rebec

    Stanford Univ

  • Tao Jia

    Stanford Univ

  • Makoto Hashimoto

    SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, SLAC, Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, SLAC National Accelerator Laboratory,, SLAC National Accelerator Laboratory

  • Donghui Lu

    SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, SLAC, Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, SLAC National Accelerator Laboratory,, SLAC National Accelerator Laboratory

  • Brian John Moritz

    SLAC, Stanford University, Stanford Univ, Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory, SIMES, SLAC

  • Robert G Moore

    Oak Ridge National Laboratory, SLAC

  • Thomas Devereaux

    Stanford Univ, SLAC, Stanford, Stanford University, Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, SIMES, SLAC, SLAC

  • Zhixun Shen

    Stanford University, Stanford Univ, Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory