Oxocuprates: A structural and magnetic zoo

15 November 1988

journal article
research article
Published by AIP Publishing in Journal of Applied Physics

Vol. 64 (10) , 5953-5955
https://doi.org/10.1063/1.342161

Abstract

We have attempted a magnetostructural correlation for the oxocuprates: Y₂Cu₂O₅, BaCuO₂, Y₂BaCuO₅, and YBa₂Cu₃O₆, all of which are closely related to the new high‐T_c superconductors. It was found that this series of compounds has interesting combinations of ferro‐ and antiferromagnetic interactions as a consequence of the structural and electronic variety of copper. Y₂Cu₂O₅ and Y₂BaCuO₅ were shown to be chain and layer magnetic systems, respectively. BaCuO₂, a complicated 3D structure, has interesting effects of exchange interaction manifested in the temperature‐dependent EPR spectrum. YBa₂Cu₃O₆ has been shown to possess a Néel point at 450 K from EPR intensity variation with temperature.

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