Cuprate-Specific Modeling of Pseudogap Collapse

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).