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Single crystal growth and anisotropy of CeRuPO

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arxiv 0709.4144 v2 pith:ZO2FCALK submitted 2007-09-26 cond-mat.str-el cond-mat.mtrl-sci

Single crystal growth and anisotropy of CeRuPO

classification cond-mat.str-el cond-mat.mtrl-sci
keywords anisotropycerupocrystalsinglegrowthinteractionmagneticab-plane
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We report on the single crystal growth of the ferromagnetic Kondo lattice system CeRuPO using a Sn flux method. Magnetic susceptibility and electrical resistivity measurements indicate strong anisotropy of this structurally layered compound. They evidence that the magnetic moments order ferromagnetically along the c-direction of the tetragonal unit cell, whereas the crystal electric field (CEF) anisotropy favors the ab-plane. Therefore, CeRuPO presents the unusual case within rare earth systems, where the anisotropy of the interionic exchange interaction overcomes the single ion anisotropy due to the CEF interaction.

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