Cuprate-Specific Modeling of Pseudogap Collapse

ORAL

Abstract

We have found that a model of the pseudogap as a short-range antiferromagnetic (AFM) order with topological defects (charged domain walls) can describe many features of the pseudogap, including:

  • Gap collapse when the Van Hove singularity (VHS) of the lower magnetic band crosses the Fermi level;

    Low-field limit Hall density diverges at a doping beyond the VHS crossing;

    Fermi arcs associated with gap inhomogeneity;[1]

    Superconducting Tc associated with strength of VHS, approaching high-order VHS.[2]



    These results are in good agreement with experimental studies of pseudogap collapse.[3]





[1] R.S. Markiewicz and A. Bansil, ArXiv:2206.00077.

[2] R.S. Markiewicz, B. Singh, C. Lane, and A. Bansil, ArXiv:2105.04546.

[3] M. Lizaire et al., PRB104, 014515 (2021).

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Publication: ArXiv:2105.04546
ArXiv:2206.00077

Presenters

  • Robert S Markiewicz

    • Northeastern University

Authors

  • Robert S Markiewicz

    • Northeastern University

  • Bahadur Singh

    • Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400005, India
    • Northeastern University

  • Christopher A Lane

    • Los Alamos National Laboratory

  • Arun Bansil

    • Northeastern University
    • Northeastern University, Boston, USA