Development of Cu-spin correlation in Bi1.74Pb 0.38Sr1.88Cu1-yZnyO 6+δ high-temperature superconductors observed by muon spin relaxation

T. Adachi, Y. Tanabe, K. Suzuki, Y. Koike, T. Suzuki, T. Kawamata, I. Watanabe

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Abstract

A systematic muon-spin-relaxation study in Bi-2201 high-Tc cuprates has revealed that the Cu-spin correlation (CSC) is developed at low temperatures below 2 K in a wide range of hole concentrations where superconductivity appears. The CSC tends to weaken with increasing hole concentration. Moreover, CSC has been enhanced through the 3% substitution of Zn for Cu. These results are quite similar to those observed in La-214 high-T c cuprates. Accordingly, it has been suggested that the intimate relationship between the so-called spin-charge stripe correlations and superconductivity is a universal feature in hole-doped high-Tc cuprates. Furthermore, an apparent development of CSC, which is suppressed through the Zn substitution oppositely, has been observed in nonsuperconducting heavily overdoped samples, which is argued in the context of a recently proposed ferromagnetic state in heavily overdoped cuprates.

Original languageEnglish
Article number184522
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume83
Issue number18
DOIs
Publication statusPublished - 2011 May 31

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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