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Neutron-scattering study of impurity effect on stripe correlations in La-based 214 High-Tc cuprate

Journal of Superconductivity and Novel Magnetism, ISSN: 1557-1939, Vol: 22, Issue: 3, Page: 243-245
2009
  • 6
    Citations
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  • 12
    Captures
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    Mentions
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    6
    • Citation Indexes
      6
  • Captures
    12

Article Description

We present results of neutron-scattering study of impurity effects on the static stripe correlations in La-based 214 high-T cuprate. We found that the superlattice peaks from the charge-density-wave (CDW) order was induced by doping magnetic Fe ions in the low-temperature-orthorhombic (LTO) phase of La Sr CuO (LSCO). The spin-density-wave (SDW) order is also stabilized by Fe-doping, suggesting the appearance of stripe ordered state in the LTO phase, as is seen it the low-temperature-tetragonal (LTT) phase of La Ba Cu (LBCO). Therefore, the stripe order can be potentially realized in the La-214 system irrespective of crystal structure. On the other hand, the onset temperature for the appearance of SDW and CDW orders is lowered by Zn-doping in La Ba CuO system. This result suggests that the existing well-stabilized stripe order is degraded by substituting non-magnetic Zn ions. © 2008 Springer Science+Business Media, LLC.

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