Magnetic dynamics in copper-oxide-based antiferromagnets: The role of interlayer coupling

21 May 1990

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 64 (21) , 2571-2574
https://doi.org/10.1103/physrevlett.64.2571

Abstract

It is shown that thermal excitation of spin waves in a highly anisotropic antiferromagnet results in a characteristic temperature dependence of sublattice magnetization with a crossover from a 3D to a quasi-2D behavior. The magnetic dynamics in several copper-oxide-based antiferromagnets is analyzed in this context in terms of subtle details of their structural characteristics, and the temperature dependence of the Cu moment is used to determine the planar and interplanar exchange energies.

Keywords

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