Single crystal growth and anisotropy of CeRuPO

Details Single crystal growth and anisotropy of CeRuPO Single crystal growth and anisotropy of CeRuPO

2007-09-26

arxiv.org/abs/0709.4144v2

J. Cryst. Growth 310, 1875 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

13 pages, 7 figures, high quality figures: http://www.cpfs.mpg.de/~krellner/

Scientific paper

10.1016/j.jcrysgro.2007.10.045

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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