Main factors in determining the magneto-optical behavior of rare-earth compounds

Yang, J. H.; Zhang, F.; Xu, Y.; Guillot, M.

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Main factors in determining the magneto-optical behavior of rare-earth compounds

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Zhang, F.
Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society;

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Xu, Y.
Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society;

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Guillot, M.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Yang, J. H., Zhang, F., Xu, Y., & Guillot, M. (2004). Main factors in determining the magneto-optical behavior of rare-earth compounds. Journal of Magnetism and Magnetic Materials, 272-276, 2236-2237.

Cite as: https://hdl.handle.net/21.11116/0000-000E-FB92-2

Abstract

Some microscopic factors in the occurring of the Faraday rotation (FR)
in the ferrimagnetic Ce-substituted iron garnet CexY3-xFe5O12 are
analyzed using the quantum theory. One crucial factor is the
superexchange interaction; FR scales linearly with this interaction.
However, it approaches saturation as the superexchange interaction
becomes several times larger than its normal value and then decreases.
The spin-orbit (SO) coupling of the ground configuration has also a
great influence on the FR. However, the dependency of FR on the SO
coupling strength is rather complex. (C) 2004 Elsevier B.V. All rights
reserved.