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.

*B.M., Z.C., Z.X.S, and T.P.D. were supported by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division under Contract No. DE-AC02-76SF00515 for work at SLAC National Accelerator Laboratory and Stanford University. Y.W. acknowledges support from the National Science Foundation (NSF) award DMR-2038011.

–

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