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Abstract: We report on the single crystal growth of the ferromagnetic Kondo latticesystem CeRuPO using a Sn flux method. Magnetic susceptibility and electricalresistivity measurements indicate strong anisotropy of this structurallylayered compound. They evidence that the magnetic moments orderferromagnetically along the c-direction of the tetragonal unit cell, whereasthe crystal electric field CEF anisotropy favors the ab-plane. Therefore,CeRuPO presents the unusual case within rare earth systems, where theanisotropy of the interionic exchange interaction overcomes the single ionanisotropy due to the CEF interaction.



Author: C. Krellner, C. Geibel

Source: https://arxiv.org/







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