Stripe formation in electron-doped cuprates

Details Stripe formation in electron-doped cuprates Stripe formation in electron-doped cuprates

1999-07-28

arxiv.org/abs/cond-mat/9907447v3

Physics

Condensed Matter

Superconductivity

4 pages, 2 encapsulated postscript figures

Scientific paper

10.1103/PhysRevLett.84.5375

We investigate the formation of charge domain walls in an electron-doped extended Hubbard model for the superconducting cuprates. Within an unrestricted Hartree-Fock approach, extended by the introduction of slave-bosons to obtain a more proper treatment of strong correlations, we demonstrate the occurrence of stripes in the (1,1) and (1,-1) directions having one doped electron per stripe site. The different filling, direction and width of these electron-doped stripes with respect to those obtained in the hole-doped systems have interesting observable consequences, which are discussed.

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