Abstract
We perform a systematic slave-boson mean-field analysis of the three-band model for cuprates with first-principle parameters. Contrary to widespread belief based on earlier mean-field computations low doping stripes have a linear density close to added hole per lattice constant. We find a dimensional crossover from 1D to 2D at doping followed by a breaking of particle-hole symmetry around doping as doping increases. Our results explain in a simple way the behavior of the chemical potential, the magnetic incommensurability, and transport experiments as a function of doping. Bond centered and site-centered stripes become degenerate for small overdoping.
- Received 7 February 2002
DOI:https://doi.org/10.1103/PhysRevLett.89.136401
©2002 American Physical Society