Long-range antiferromagnetic order of the Cu in oxygen-deficient RBa2Cu3O6+x

W. H. Li, J. W. Lynn, H. A. Mook, B. C. Sales, Z. Fisk

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


We have employed polarized and unpolarized neutron-diffraction techniques on both powders and single crystals to establish the nature of the magnetic order of the Cu ions in oxygen-deficient (nonsuperconducting) RBa2Cu3O6+x (R=Y,Nd). Magnetic Bragg peaks of the type (h2,k2,l) are observed that yield a magnetic structure in which the Cu spins are coupled antiferromagnetically both in the Cu-O planes as well as along the tetragonal c axis, with the spin direction in the tetragonal plane. The Néel temperature is very sensitive to the oxygen content, with TN(x1/40)500 K, while the spin configuration is independent of x.

Original languageEnglish
Pages (from-to)9844-9847
Number of pages4
JournalPhysical Review B
Issue number16
StatePublished - 1988


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