Electron spin resonance studies of the hole-doped quasi one-dimensional cuprate (Ca0.80Y0.20)0.82CuO2

Y. Miyazaki, P. A. Anderson, P. P. Edwards

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2 Citations (Scopus)

Abstract

Electron spin resonance (ESR) and magnetic susceptibility studies have been performed on polycrystalline samples of the quasi one-dimensional cuprate (Ca0.80Y0.20)0.82CuO2 for which the formal Cu valence is +2.20. The magnetic behavior of the compound is accurately described by a contribution from alternating Heisenberg chains (ACH), and a Curie-Weiss (CW) component, which appears undetected in our ESR experiments. The latter contribution may be derived from spin fragments introduced by the doped hole carriers which behave in isolation from the ACH chains. After subtracting the CW contribution, the compound shows a typical behavior of the one-dimensional compounds with spin symmetric exchange interactions. Most of the doped hole carriers appear to be localized and dilute the long-range spin correlations along the chain.

Original languageEnglish
Pages (from-to)241-246
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Volume234
Issue number2
DOIs
Publication statusPublished - 2001 Sep

Keywords

  • Composite crystal
  • Copper oxides
  • Electron spin resonance
  • Low-dimensional compounds
  • Magnetic susceptibility

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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