A Simple Model for the Checkerboard Pattern of Modulated Hole Densities in Underdoped Cuprates
arXiv:cond-mat/0509382 · doi:10.1140/epjb/e2006-00022-4
Abstract
A simple model is proposed as a possible explanation for the checkerboard pattern of modulations in the hole density observed in recent tunneling experiments on underdoped cuprates. Two assumptions are made; first, an enhanced hole density near the acceptor dopants and secondly short range correlations in the positions of these dopants caused by their electrostatic and anisotropic elastic interactions. Together these can lead to a structure factor in qualitative agreement with experiment.
4 pages, 4 figures; Fig.3 and Fig.4(c) added, typos corrected, references added
References in corpus (5)
- A `checkerboard' electronic crystal state in lightly hole-doped Ca_{2-x}Na_{x}CuO_{2}Cl_{2}
- Pair Density Wave in the Pseudogap State of High Temperature Superconductors
- Particle-Hole Asymmetry in Doped Mott Insulators: Implications for Tunneling and Photoemission Spectroscopies
- Charge modulation, spin response, and dual Hofstadter butterfly in high-Tc cuprates
- A model of phase fluctuations in a lattice d-wave superconductor: application to the Cooper pair charge-density-wave in underdoped cuprates