Magnetic ordering in electronically phase-separated La2-xSrxCuO4+y: Neutron diffraction experiments

L. Udby, N. H. Andersen, F. C. Chou, N. B. Christensen, S. B. Emery, Kim Lefmann, J. W. Lynn, H. E. Mohottala, Ch. Niedermayer, B. O. Wells

    Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

    8 Citeringar (SciVal)


    We present results of magnetic neutron diffraction experiments on the codoped superoxygenated La2-xSrxCuO4+y (LSCO+O) system with x=0.09. We find that the magnetic phase is long-range ordered incommensurate antiferromagnetic with a Neacuteel temperature T-N coinciding with the superconducting ordering temperature T-c=40 K. The incommensurability value is consistent with a hole doping of n(h)approximate to 1>8 but in contrast to nonsuperoxygenated La2-xSrxCuO4 with hole doping close to n(h)approximate to 18 the magnetic-order parameter is not field dependent. We attribute this to the magnetic order being fully developed in LSCO+O as in the spin and charge ordered "stripe" compounds La1.48Nd0.40Sr0.12CuO4 and La7/8Ba1/8CuO4.
    TidskriftPhysical Review B (Condensed Matter and Materials Physics)
    StatusPublished - 2009

    Ämnesklassifikation (UKÄ)

    • Naturvetenskap
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