Cu-site-substitution effects on the 1/8 anomaly in the high-Tc cuprates and on the anomaly at x = 0.21 in La2-xSrxCuO4

Y. Koike, M. Akoshima, M. Aoyama, K. Nishimaki, T. Kawamata, T. Adachi, T. Noji, M. Kato, I. Watanabe, S. Ohira, W. Higemoto, K. Nagamine, H. Kimura, K. Hirota, K. Yamada, Y. Endoh

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8 Citations (Scopus)

Abstract

Effects of the Cu-site substitution on the 1/8 anomaly in the Bi-2212 and Y-123 phases and also on the anomaly at x = 0.21 in La2-xSrxCuO4 (LSCO) have been investigated from the transport, muon-spin relaxation and neutron-scattering measurements. It is suggested that the dynamical stripe correlations of spins and holes exist in the Bi-2212 and Y-123 phases as well as in the La-214 phase and that they tend to be pinned by Zn at the hole concentration of ∼1/8 per Cu in the high-Tc cuprates and also at x = 0.21 in LSCO. Based upon the stripe-pinning model, universal properties in the high-Tc cuprates that partially substituted Zn is a strong scatterer and that the Zn substitution markedly suppresses the superconductivity are also discussed.

Original languageEnglish
Pages (from-to)82-88
Number of pages7
JournalPhysica C: Superconductivity and its applications
Volume357-360
DOIs
Publication statusPublished - 2001 Aug

Keywords

  • 1/8 anomaly
  • Bi-2212
  • LaSrCu ZnO
  • Muon-spin relaxation
  • Neutron scattering
  • Stripe
  • Y-123

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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