Phys. Rev. Lett. 84, 4962–4965 (2000)One-Dimensional Metallic Behavior of the Stripe Phase in La2-xSrxCuO4Received 30 November 1999; published in the issue dated 22 May 2000 Using an exact diagonalization method within the dynamical mean-field theory we found stable stripe phases in the two-dimensional Hubbard model doped by 0.03<δ<0.2 holes, with a crossover from diagonal to vertical site-centered stripes at doping δ≃0.05. The doping dependence of the size of magnetic domains and chemical potential shift Δμ∝-δ2 are in quantitative agreement with the experimental results for La2-xSrxCuO4. The one-dimensional metallic behavior along the domain walls explains the observed suppression of spectral weight along the Brillouin zone diagonal. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.4962
DOI:
10.1103/PhysRevLett.84.4962
PACS:
74.25.Jb, 71.27.+a, 75.10.-b, 79.60.-i
|
