Metallic Mean-Field Stripes, Incommensurability, and ChemicalPotential in Cuprates

J. Lorenzana and G. Seibold
Phys. Rev. Lett. 89, 136401 – Published 6 September 2002

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 1/2 added hole per lattice constant. We find a dimensional crossover from 1D to 2D at doping 0.1 followed by a breaking of particle-hole symmetry around doping 1/8 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.

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  • Received 7 February 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.136401

©2002 American Physical Society

Authors & Affiliations

J. Lorenzana1 and G. Seibold2

  • 1Comisión Nacional de Energı́aAtómica, Centro Atómico Bariloche and InstitutoBalseiro, 8400 S.C. de Bariloche, Argentina
  • 2Institut für Physik, BTU Cottbus, PBox 101344, 03013 Cottbus, Germany

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Issue

Vol. 89, Iss. 13 — 23 September 2002

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