Spin-freezing in the layered perovskites La2CoxCu1-xO4 + δ

A. Lappas, K. Prassides, A. Amato, R. Feyerherm, F. N. Gygax, A. Schenck

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The muon-spin relaxation (μ+SR) technique was used to investigate the spin glass phase of La2Co0.75Cu0.25O4.16 (Tf ≈ 30 K), an oxygen-rich Mott-Hubbard insulator, isostructural with the high-Tc La2CuO4 + δ superconductor. On approaching Tf from above, the μ+-spin dynamics are described by a stretched exponential decay with rapid growth of the correlation times, reminiscent of the spin freezing process in Ising spin glasses.

Original languageEnglish
Pages (from-to)1291-1292
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Issue numberPART 2
Publication statusPublished - 1995 Feb
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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