English

Electronic properties of disordered valence-bond stripes in cuprate superconductors

Superconductivity 2008-10-13 v2 Strongly Correlated Electrons

Abstract

We calculate electronic single-particle properties of short-range ordered stripe states, using Monte-Carlo simulations of collective charge-density wave (CDW) order parameters coupled to fermions on a 2d square lattice. For superconducting bond-centered stripes with a d-wave form factor, we find a valence-bond "glass" which coexists with low-energy quasiparticles featuring interference phenomena, in agreement with recent scanning-tunneling-microscopy (STM) measurements on underdoped BSCCO and CaNaCuOCl. Together with earlier work, our calculations provide a link between CDW features seen in STM and those in magnetic neutron scattering.

Keywords

Cite

@article{arxiv.0803.2038,
  title  = {Electronic properties of disordered valence-bond stripes in cuprate superconductors},
  author = {Matthias Vojta},
  journal= {arXiv preprint arXiv:0803.2038},
  year   = {2008}
}

Comments

6 pages, 5 figs; (v2) slightly extended version, as published