Néel transition and sublattice magnetization of pure and doped La2CuO4

B. Keimer*, A. Aharony, A. Auerbach, R. J. Birgeneau, A. Cassanho, Y. Endoh, R. W. Erwin, M. A. Kastner, G. Shirane

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

156 Scopus citations


We have measured the sublattice magnetization of stoichiometric La2CuO4 (TN=325 K) and La2Cu0.95Zn0.05O4 (TN=157 K). We discuss the data for La2CuO4 and other lamellar copper oxides in terms of the quantum Heisenberg model including weak XY anisotropy and interlayer coupling. Spin-wave theory and a generalized Schwinger-boson mean-field theory are used to predict the ordered moment as a function of temperature without adjustable parameters. We also discuss the influence of different dopants on the Néel temperature and sublattice magnetization.

Original languageEnglish
Pages (from-to)7430-7435
Number of pages6
JournalPhysical Review B-Condensed Matter
Issue number13
StatePublished - 1992


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