Spin correlations and magnetic order in nonsuperconducting Nd 2-xCexCuO4±5

P. K. Mang, O. P. Vajk, A. Arvanitaki, J. W. Lynn, M. Greven

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Abstract

The magnetic properties of non-superconducting Nd2-xCe xCuO4±δ were studied using neutron scattering methods. It was stated that using Monte Carlo methods it was possible to describe the instantaneous correlation length for the randomly site-diluted nearest neighbor spin-1/2 square-lattice Heisenberg antiferromagnet. It was found that the effect of quantum fluctuations was strong on the ordered moment, which decreases more rapidly than for quenched-disorder model. Phonon anomalies were observed in both electron hole-doped high-temperature superconductors.

Original languageEnglish (US)
Article number027002
Pages (from-to)027002-1-027002-4
JournalPhysical review letters
Volume93
Issue number2
DOIs
StatePublished - Jul 9 2004

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