Vertical and Diagonal Stripes in the Extended Hubbard Model

Abstract

We extend previous real-space Hartree-Fock studies of static stripe stability to determine the phase diagram of the Hubbard model with anisotropic nearest-neighbor hopping t, by varying the on-site Coulomb repulsion U and investigating locally stable structures for representative hole doping levels x=1/8 and x=1/6. We also report the changes in stability of these stripes in the extended Hubbard model due to next-neighbor hopping t' and to a nearest-neighbor Coulomb interaction V.

4 pages, 2 figures

References in corpus (2)

• Lattice anisotropy as microscopic origin of static stripes in cuprates
• Suppression of static stripe formation by next-neighbor hopping

Cited by in corpus (4)

• Half-filled stripes in the t-t'-U Hubbard model
• Influence of anisotropic next-nearest-neighbor hopping on diagonal charge-striped phases
• Charge-stripe phases versus a weak anisotropy of nearest-neighbor hopping
• Stability and properties of striped phases in systems of interacting fermions or hard-core bosons