title: Electrical resistivity anisotropy from self-organized one dimensionality in high-temperature superconductors.
abstract: We investigate the manifestation of stripes in the in-plane resistivity anisotropy in untwinned single crystals of La2-xSrxCuO4 ( x = 0.02-0.04) and YBa(2)Cu(3)O(y) ( y = 6.35-7.0). It is found that both systems show strongly temperature-dependent in-plane anisotropy in the lightly hole-doped region and that the anisotropy in YBa(2)Cu(3)O(y) grows with decreasing y below approximately 6.60 despite the decreasing orthorhombicity, which gives most direct evidence that electrons self-organize into a macroscopically anisotropic state. The transport is found to be easier along the direction of the spin stripes already reported, demonstrating that the stripes are intrinsically conducting in cuprates.
authors.affiliation: Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511, Japan.
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Ando
authors.forename: Kouji
authors.initials: K
authors.lastname: Segawa
authors.forename: Seiki
authors.initials: S
authors.lastname: Komiya
authors.forename: A N
authors.initials: AN
authors.lastname: Lavrov