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Phonon-Mediated Long-Range Attractive Interaction in 1D Cuprates

ORAL

Abstract

Establishing a minimal microscopic model for cuprates is a key step toward understanding the high-Tc mechanism. Through quantitative comparison with recent in situ angle-resolved photoemission spectroscopy measurements on doped 1D cuprate chains, our simulations highlight a significant contribution from long-range electron-phonon coupling, beyond standard Hubbard model descriptions. Reasonable values for the coupling strength and phonon energy produce a strong attractive interaction between neighboring electrons, consistent with the effective interaction extracted from experiment. Considering the structural and chemical similarity between 1D and 2D cuprate materials, models that include long-range electron-phonon coupling will provide valuable insights on cuprates, unconventional high-Tc superconductivity in general, and related quantum phases.

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Publication: arXiv:2107.05773 [cond-mat.str-el]

Presenters

  • Brian Moritz

    SLAC National Accelerator Laboratory & S, SLAC - Natl Accelerator Lab, SLAC National Accelerator Lab, SLAC National Accelerator Laboratory & Stanford University, SLAC National Accelerator Laboratory

Authors

  • Brian Moritz

    SLAC National Accelerator Laboratory & S, SLAC - Natl Accelerator Lab, SLAC National Accelerator Lab, SLAC National Accelerator Laboratory & Stanford University, SLAC National Accelerator Laboratory

  • Yao Wang

    Clemson University, clemson university, Department of Physics and Astronomy, Clemson University

  • Zhuoyu Chen

    Stanford University, Stanford Univ

  • Tao Shi

    Chinese Academy of Sciences

  • Zhixun Shen

    Stanford University, Geballe Laboratory for Advanced Materials, Stanford University, USA, Stanford Univ

  • Thomas P Devereaux

    Stanford Univ, Stanford University; SLAC National Accelerator Laboratory, Stanford University