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arXiv 0709.4144cond-mat.str-elcond-mat.mtrl-sci
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CeRuPO的单晶生长和各向异性

Single crystal growth and anisotropy of CeRuPO

C. Krellner, C. Geibel

摘要:

我们报告的铁磁性近藤晶格系统CeRuPO使用Sn助熔剂法的单晶生长。磁化率和电阻率测量表明这种结构层状化合物的各向异性很强。结果表明,四元晶胞的磁矩顺序为沿c方向的铁磁性,而晶体的电场各向异性倾向于ab平面。因此,CeRuPO在稀土系统中呈现出不寻常的情况,其中电子交换相互作用的各向异性克服了由于CEF相互作用引起的单离子各向异性。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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