We consider the effect of a short antiferromagnetic correlation length ξ on the electronic bandstructure of the underdoped cuprates. Starting with a Fermi-surface topology similar to that detected in magnetic quantum-oscillation experiments, we show that a reduced ξ gives an assymmetric broadening of the quasiparticle dispersion, resulting in simulated ARPES data very similar to those observed in experiment. Predicted features include the presence of `Fermi arcs' close to ak=(π/2,π/2), without the need to invoke a d-wave pseudogap order parameter. The statistical variation in the k-space areas of the reconstructed Fermi surface pockets causes the quantum oscillations to be strongly damped, even in very strong magnetic fields, in agreement with experiment.
@article{arxiv.0708.2924,
title = {Cuprate Fermi orbits and Fermi arcs: the effect of short-range antiferromagnetic order},
author = {Neil Harrison and Ross D. McDonald and John Singleton},
journal= {arXiv preprint arXiv:0708.2924},
year = {2009}
}